Webdex

Color key: WebIDL CSS Markup HTTP

b (markup element) §

Defined in HTML

Referenced in ContentEditable, execCommand, HTML Accessibility API Mappings 1.0, ARIA in HTML, WebVTT: The Web Video Text Tracks Format

b (CSS value for rgb() ) §

Defined in CSS Color 5

b (CSS value for hwb() ) §

Defined in CSS Color 5

b (CSS value for lab() ) §

Defined in CSS Color 5

b (CSS value for oklab() ) §

Defined in CSS Color 5

b (CSS value for color() ) §

Defined in CSS Color 5

Referenced in CSS 2.2

CSSHWB.b (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSLab.b (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSOKLab.b (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSRGB.b (WebIDL attribute) §

Defined in CSS Typed OM 1

DOMMatrix.b (WebIDL attribute) §

DOMMatrixReadOnly.b (WebIDL attribute) §

Defined in Geometry Interfaces 1

DOMMatrix2DInit.b (WebIDL dictionary member) §

Defined in Geometry Interfaces 1

GPUColorDict.b (WebIDL dictionary member) §

Defined in WebGPU

MLBinarySupportLimits.b (WebIDL dictionary member) §

Defined in Web Neural Network API

MLGemmSupportLimits.b (WebIDL dictionary member) §

Defined in Web Neural Network API

B4 (CSS value for <page-size> ) §

Defined in CSS Paged Media 3

B5 (CSS value for <page-size> ) §

Defined in CSS Paged Media 3

"babble" (value for USBTransferStatus WebIDL enumeration) §

Defined in WebUSB API

back (CSS value for nav-controls descriptor of @media @rule ) §

Defined in Media Queries 5

"back" (value for GPUCullMode WebIDL enumeration) §

Defined in WebGPU

"back_forward" (value for NavigationTimingType WebIDL enumeration) §

Defined in Navigation Timing 2

Referenced in HTML

History.back() (WebIDL operation) §

Defined in HTML

Navigation.back(options) (WebIDL operation) §

Defined in HTML

::backdrop (CSS selector) §

Defined in CSS Positioned Layout 4

Referenced in Fullscreen API, CSS Conditional 5

backdrop (concept) §

Defined in Compositing 2 , Compositing 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, Filter Effects 1

Backdrop Root (concept) §

Defined in Filter Effects 2

Referenced in Element Capture, CSS View Transitions 1, WebXR DOM Overlays

backdrop-filter (CSS property) §

Defined in Filter Effects 2

Referenced in CSS Typed OM 1, CSS View Transitions 1

backface-visibility (CSS property) §

Defined in CSS Transforms 2

Referenced in Compatibility, CSS Typed OM 1

background (markup attribute) §

Defined in HTML

"background" (value for TaskPriority WebIDL enumeration) §

Defined in Prioritized Task Scheduling

background (CSS property) §

Defined in CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Backgrounds 4, CSS Form Styling 1, CSS Variables 2, Compositing 2, Compositing 1, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 3, CSS Box Model 4, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Color 4, CSS Containment 1, CSS Containment 2, CSS Images 3, CSS Nesting, CSS Table 3, CSS Typed OM 1, CSS Values 3, CSS Values 4, CSS Variables 1, CSS Will Change 1, WebVTT: The Web Video Text Tracks Format

Background (CSS value for <color>, <deprecated-color> type ) §

Defined in CSS Color 4

HTMLBodyElement.background (WebIDL attribute) §

Defined in HTML

Background (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

background color (concept) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

background image (concept) §

Defined in CSS Backgrounds 3

Referenced in CSS Backgrounds 4, CSS Snapshot 2022, CSS Snapshot 2023

background image layer (concept) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

background painting area (concept) §

Defined in CSS Backgrounds 4 , CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Overflow 3, CSS Paged Media 3

background positioning area (concept) §

Defined in CSS Backgrounds 3

Referenced in CSS Backgrounds 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Fragmentation 3, CSS Fragmentation 4, CSS Images 3, CSS Overflow 3, CSS Paged Media 3, CSS Values 5

background_color (concept for manifest ) §

Defined in Web Application Manifest

IdentityProviderBranding.background_color (WebIDL dictionary member) §

Defined in Federated Credential Management API

background-attachment (CSS property) §

Defined in CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Paged Media 3, CSS Positioned Layout 3, CSS Transforms 1, CSS Typed OM 1, CSS User Interface 4, CSS Values 3, CSS Values 4

Related terms: CSS value fixed, CSS value local, CSS value scroll

background-blend-mode (CSS property) §

Defined in Compositing 2 , Compositing 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Typed OM 1

background-clip (CSS property) §

Defined in CSS Backgrounds 4 , CSS Backgrounds 3

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 4, CSS Paged Media 3, CSS Shapes 1, CSS Typed OM 1, CSS User Interface 4

Related terms: CSS value border-area, CSS value border-box, CSS value content-box, CSS value padding-box, CSS value text

background-color (CSS property) §

Defined in CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Backgrounds 4, CSS Variables 2, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Color 4, CSS Color Adjustment 1, CSS Images 4, CSS Pseudo-Elements 4, CSS Transitions, CSS Transitions 2, CSS Typed OM 1, CSS User Interface 4, CSS Values 5, CSS Variables 1, CSSOM, WebVTT: The Web Video Text Tracks Format

background-image (CSS property) §

Defined in CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in Compositing 2, Compositing 1, CSS Snapshot 2022, CSS Snapshot 2023, CSS Animations 1, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Color Adjustment 1, CSS Images 3, CSS Images 4, CSS Transitions, CSS Typed OM 1, CSS User Interface 3, CSS User Interface 4, CSS Values 4, CSS Values 5, Mixed Content, Web Animations, WebVTT: The Web Video Text Tracks Format

Related terms: CSS value none, CSS value <uri>

background-origin (CSS property) §

Defined in CSS Backgrounds 3

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 4, CSS Paged Media 3, CSS Table 3, CSS User Interface 4, Web Animations

Related terms: CSS value border-box, CSS value content-box, CSS value padding-box

background-position (CSS property) §

Defined in CSS Backgrounds 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Images 3, CSS Images 4, CSS Transforms 1, CSS Transforms 2, CSS Typed OM 1, CSS User Interface 4, CSS Values 3, CSS Values 4, CSS Values 5, CSS Values 5, Largest Contentful Paint

Related terms: CSS value bottom, CSS value center, CSS value left, CSS value right, CSS value top

background-position-block (CSS property) §

Defined in CSS Backgrounds 4

background-position-inline (CSS property) §

Defined in CSS Backgrounds 4

background-position-x (CSS property) §

Defined in CSS Backgrounds 4

background-position-y (CSS property) §

Defined in CSS Backgrounds 4

background-repeat (CSS property) §

Defined in CSS Backgrounds 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Images 3, CSS Typed OM 1

Related terms: CSS value no-repeat, CSS value repeat, CSS value repeat-x, CSS value repeat-y, CSS value round, CSS value space

background-repeat-block (CSS property) §

Defined in CSS Backgrounds 4

Related terms: CSS value no-repeat, CSS value repeat, CSS value round, CSS value space

background-repeat-inline (CSS property) §

Defined in CSS Backgrounds 4

Related terms: CSS value no-repeat, CSS value repeat, CSS value round, CSS value space

background-repeat-x (CSS property) §

Defined in CSS Backgrounds 4

Related terms: CSS value no-repeat, CSS value repeat, CSS value round, CSS value space

background-repeat-y (CSS property) §

Defined in CSS Backgrounds 4

Related terms: CSS value no-repeat, CSS value repeat, CSS value round, CSS value space

background-size (CSS property) §

Defined in CSS Backgrounds 3

Referenced in Compatibility, CSS Backgrounds 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Images 3, CSS Sizing 4, CSS Table 3, CSS User Interface 4

Related terms: CSS value auto, CSS value contain, CSS value cover

background-tbd (CSS property) §

Defined in CSS Backgrounds 4

background-work (concept) §

Defined in HTML

BackgroundAlpha (value for in ) §

Defined in Filter Effects 1

MediaTrackCapabilities.backgroundBlur (WebIDL dictionary member) §

Defined in Media Capture and Streams

MediaTrackConstraintSet.backgroundBlur (WebIDL dictionary member) §

Defined in Media Capture and Streams

MediaTrackSettings.backgroundBlur (WebIDL dictionary member) §

Defined in Media Capture and Streams

MediaTrackSupportedConstraints.backgroundBlur (WebIDL dictionary member) §

Defined in Media Capture and Streams

ServiceWorkerRegistration.backgroundFetch (WebIDL attribute) §

Defined in Background Fetch

backgroundfetchabort (event for ServiceWorkerGlobalScope ) §

Defined in Background Fetch

backgroundfetchclick (event for ServiceWorkerGlobalScope ) §

Defined in Background Fetch

BackgroundFetchEvent (WebIDL interface) §

Defined in Background Fetch

Related terms: BackgroundFetchEvent.registration, new BackgroundFetchEvent(type, init)

see also WebIDLPedia

new BackgroundFetchEvent(type, init) (WebIDL constructor) §

Defined in Background Fetch

BackgroundFetchEventInit (WebIDL dictionary) §

Defined in Background Fetch

Related terms: BackgroundFetchEventInit.registration

see also WebIDLPedia

backgroundfetchfail (event for ServiceWorkerGlobalScope ) §

Defined in Background Fetch

BackgroundFetchFailureReason (WebIDL enumeration) §

Defined in Background Fetch

Related terms: value , value aborted, value bad-status, value download-total-exceeded, value fetch-error, value quota-exceeded

see also WebIDLPedia

BackgroundFetchManager (WebIDL interface) §

Defined in Background Fetch

Referenced in HTML, Web Periodic Background Synchronization

Related terms: BackgroundFetchManager.fetch(id, requests, options), BackgroundFetchManager.get(id), BackgroundFetchManager.getIds()

see also WebIDLPedia

BackgroundFetchOptions (WebIDL dictionary) §

Defined in Background Fetch

Related terms: BackgroundFetchOptions.downloadTotal

see also WebIDLPedia

BackgroundFetchRecord (WebIDL interface) §

Defined in Background Fetch

Related terms: BackgroundFetchRecord.request, BackgroundFetchRecord.responseReady

see also WebIDLPedia

BackgroundFetchRegistration (WebIDL interface) §

Defined in Background Fetch

Related terms: BackgroundFetchRegistration.downloaded, BackgroundFetchRegistration.downloadTotal, BackgroundFetchRegistration.failureReason, BackgroundFetchRegistration.id, BackgroundFetchRegistration.onprogress, BackgroundFetchRegistration.recordsAvailable, BackgroundFetchRegistration.result, BackgroundFetchRegistration.uploaded, BackgroundFetchRegistration.uploadTotal, event progress, BackgroundFetchRegistration.abort(), BackgroundFetchRegistration.match(request, options), BackgroundFetchRegistration.matchAll(request, options)

see also WebIDLPedia

BackgroundFetchResult (WebIDL enumeration) §

Defined in Background Fetch

Related terms: value , value failure, value success

see also WebIDLPedia

backgroundfetchsuccess (event for ServiceWorkerGlobalScope ) §

Defined in Background Fetch

BackgroundFetchUIOptions (WebIDL dictionary) §

Defined in Background Fetch

Related terms: BackgroundFetchUIOptions.icons, BackgroundFetchUIOptions.title

see also WebIDLPedia

BackgroundFetchUpdateUIEvent (WebIDL interface) §

Defined in Background Fetch

Related terms: new BackgroundFetchUpdateUIEvent(type, init), BackgroundFetchUpdateUIEvent.updateUI(options)

see also WebIDLPedia

new BackgroundFetchUpdateUIEvent(type, init) (WebIDL constructor) §

Defined in Background Fetch

BackgroundImage (value for in ) §

Defined in Filter Effects 1

BackgroundSyncOptions (WebIDL dictionary) §

Defined in Web Periodic Background Synchronization

Related terms: BackgroundSyncOptions.minInterval

see also WebIDLPedia

backing list (concept for observable array attribute ) §

Defined in Web IDL

Referenced in CSS Typed OM 1, CSSOM

BluetoothManufacturerDataMap.[[BackingMap]] (internal slot) §

Defined in Web Bluetooth

BluetoothServiceDataMap.[[BackingMap]] (internal slot) §

Defined in Web Bluetooth

TCPServerSocketOptions.backlog (WebIDL dictionary member) §

Defined in Direct Sockets API

BackreferenceMatcher (algorithm) §

Defined in ECMAScript

backslash escapes (concept) §

Defined in CSS 2.1

backupEligible (algorithm for credential record ) §

Defined in Web Authentication

backupState (algorithm for credential record ) §

Defined in Web Authentication

"backward" (value for MLRecurrentNetworkDirection WebIDL enumeration) §

Defined in Web Neural Network API

backwards (CSS value for animation-fill-mode ) §

Defined in CSS Animations 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Animations 2

"backwards" (value for FillMode, PlaybackDirection enumeration WebIDL enumerations) §

Defined in Web Animations , Web Animations 2

bad port (concept) §

Defined in Fetch

"bad-grammar" (value for SpeechRecognitionErrorCode WebIDL enumeration) §

Defined in Web Speech API

"bad-status" (value for BackgroundFetchFailureReason WebIDL enumeration) §

Defined in Background Fetch

<bad-string-token> (CSS type) §

Defined in CSS Syntax 3

Referenced in CSS Variables 2, CSS Variables 1

<bad-url-token> (CSS type) §

Defined in CSS Syntax 3

Referenced in CSS Variables 2, CSS Variables 1

Notification.badge (WebIDL attribute) §

Defined in Notifications API

NotificationOptions.badge (WebIDL dictionary member) §

Defined in Notifications API

ValidityState.badInput (WebIDL attribute) §

Defined in HTML

balance (CSS value for column-fill ) §

Defined in CSS Multicol 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

balance (CSS value for text-wrap-style ) §

Defined in CSS Text 4

balance-all (CSS value for column-fill ) §

Defined in CSS Multicol 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

"balanced" (value for RTCDegradationPreference WebIDL enumeration) §

Defined in MediaStreamTrack Content Hints

"balanced" (value for AudioContextLatencyCategory WebIDL enumeration) §

Defined in Web Audio API , Web Audio API 1.1

"balanced" (value for RTCBundlePolicy WebIDL enumeration) §

Defined in WebRTC 1.0

"bandpass" (value for BiquadFilterType WebIDL enumeration) §

Defined in Web Audio API , Web Audio API 1.1

"bandwidth" (value for RTCQualityLimitationReason WebIDL enumeration) §

Defined in WebRTC Statistics

bar (CSS value for caret-shape ) §

Defined in CSS User Interface 4

Referenced in CSS Nesting

BarcodeDetector (WebIDL interface) §

Defined in Accelerated Shape Detection in Images

Related terms: new BarcodeDetector(barcodeDetectorOptions), BarcodeDetector.detect(image), BarcodeDetector.getSupportedFormats()

see also WebIDLPedia

new BarcodeDetector(barcodeDetectorOptions) (WebIDL constructor) §

Defined in Accelerated Shape Detection in Images

BarcodeDetectorOptions (WebIDL dictionary) §

Defined in Accelerated Shape Detection in Images

Related terms: BarcodeDetectorOptions.formats

see also WebIDLPedia

BarcodeFormat (WebIDL enumeration) §

Defined in Accelerated Shape Detection in Images

Related terms: value aztec, value codabar, value code_128, value code_39, value code_93, value data_matrix, value ean_13, value ean_8, value itf, value pdf417, value qr_code, value unknown, value upc_a, value upc_e

see also WebIDLPedia

BarProp (WebIDL interface) §

Defined in HTML

Related terms: BarProp.visible

see also WebIDLPedia

base (markup element) §

Defined in HTML

Referenced in Scripting Policy, Content Security Policy 3, CSS Values 3, CSS Values 4, EPUB 3.3, HTML Accessibility API Mappings 1.0, ARIA in HTML, Publication Manifest, SVG 2

Related terms: markup attribute href, markup attribute target

base (CSS value for appearance ) §

Defined in CSS User Interface 4

Referenced in CSS Cascading 5

JsonLdOptions.base (WebIDL dictionary member) §

Defined in JSON-LD 1.1 Processing Algorithms and API

base appearance (concept) §

Defined in CSS User Interface 4

Referenced in CSS Form Styling 1

Base direction (concept) §

Defined in Internationalization Glossary

base IRI (concept) §

Defined in RDF 1.2 Concepts and Abstract Syntax

base type (concept for CSSNumericValue ) §

Defined in CSS Typed OM 1

base URL (concept for script ) §

Defined in HTML

Referenced in Long Animation Frames API, WebDriver BiDi, Service Workers

base-palette (CSS descriptor for @font-palette-values ) §

Defined in CSS Fonts 4

Related terms: CSS type <integer>, CSS value dark, CSS value light

base-uri (concept) §

Defined in Content Security Policy 3

base64-value (grammar) §

Defined in Content Security Policy 3

Referenced in Speculation Rules, SRI

RTCCertificateStats.base64Certificate (WebIDL dictionary member) §

Defined in WebRTC Statistics

Base64URLString (WebIDL type alias) §

Defined in Web Authentication

see also WebIDLPedia

GPUTextureViewDescriptor.baseArrayLayer (WebIDL dictionary member) §

Defined in WebGPU

BaseAudioContext (WebIDL interface) §

Defined in Web Audio API , Web Audio API 1.1

Related terms: undefinedaudioWorklet, undefined[[control thread state]], undefined[[current frame]], undefinedcurrentTime, undefineddecoding thread, undefineddestination, undefinedlistener, undefinedonstatechange, undefined[[pending promises]], undefined[[render quantum size]], undefined[[rendering thread state]], undefinedrenderQuantumSize, undefinedsampleRate, undefinedstate, event statechange, undefinedcreateAnalyser(), undefinedcreateBiquadFilter(), undefinedcreateBuffer(numberOfChannels, length, sampleRate), undefinedcreateBufferSource(), undefinedcreateChannelMerger(numberOfInputs), undefinedcreateChannelSplitter(numberOfOutputs), undefinedcreateConstantSource(), undefinedcreateConvolver(), undefinedcreateDelay(maxDelayTime), undefinedcreateDynamicsCompressor(), undefinedcreateGain(), undefinedcreateIIRFilter(feedforward, feedback), undefinedcreateOscillator(), undefinedcreatePanner(), undefinedcreatePeriodicWave(real, imag, constraints), undefinedcreateScriptProcessor(bufferSize, numberOfInputChannels, numberOfOutputChannels), undefinedcreateStereoPanner(), undefinedcreateWaveShaper(), undefineddecodeAudioData(audioData, successCallback, errorCallback)

see also WebIDLPedia

BaseComputedKeyframe (WebIDL dictionary) §

Defined in Web Animations

Related terms: BaseComputedKeyframe.composite, BaseComputedKeyframe.computedOffset, BaseComputedKeyframe.easing, BaseComputedKeyframe.offset

see also WebIDLPedia

basefont (markup element) §

Defined in HTML

baseFrequency (markup attribute for feTurbulence ) §

Defined in Filter Effects 1

SVGFETurbulenceElement.baseFrequencyX (WebIDL attribute) §

Defined in Filter Effects 1

SVGFETurbulenceElement.baseFrequencyY (WebIDL attribute) §

Defined in Filter Effects 1

BaseKeyframe (WebIDL dictionary) §

Defined in Web Animations

Related terms: BaseKeyframe.composite, BaseKeyframe.easing, BaseKeyframe.offset

see also WebIDLPedia

AudioContext.baseLatency (WebIDL attribute) §

AudioContext.baseLatency (WebIDL attribute) §

Defined in Web Audio API , Web Audio API 1.1

XRRenderState.baseLayer (WebIDL attribute) §

Defined in WebXR Device API

Referenced in WebXR Augmented Reality 1, WebXR Layers API 1

XRRenderStateInit.baseLayer (WebIDL dictionary member) §

Defined in WebXR Device API

Referenced in WebXR Layers API 1

Baseline (WebIDL interface) §

Defined in Font Metrics API 1

Related terms: Baseline.name, Baseline.value

see also WebIDLPedia

baseline (CSS value for <baseline-position>, align-content property, align-items property, align-self property, justify-items property, justify-self property ) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

baseline (CSS value for align-items, align-self property ) §

Defined in CSS Flexbox 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

baseline (concept) §

Defined in CSS Inline Layout 3

baseline (CSS value for alignment-baseline, vertical-align property ) §

Defined in CSS Inline Layout 3

Referenced in CSS Text 3, CSS Text 4, CSS Text Decoration 3, CSS Text Decoration 4, CSS Writing Modes 3, CSS Writing Modes 4

baseline (CSS value for baseline-shift ) §

Defined in CSS Inline Layout 3

baseline (CSS value for line-snap ) §

Defined in CSS Line Grid 1

baseline (CSS value for box-snap ) §

Defined in CSS Line Grid 1

baseline (CSS value for vertical-align ) §

Defined in CSS 2.2

baseline (concept) §

Defined in SVG 2

Baseline alignment (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Grid Layout 1, CSS Grid Layout 2, CSS Grid Layout 3, CSS Inline Layout 3, CSS Overflow 3, CSS Positioned Layout 3

baseline alignment preference (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

baseline alignment preference (concept) §

Defined in CSS Inline Layout 3

baseline content-alignment (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

baseline self-alignment (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

baseline set (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2

<baseline-position> (CSS type) §

Defined in CSS Box Alignment 3

Referenced in CSS Anchor Positioning

Related terms: CSS value baseline, CSS value first baseline, CSS value last baseline

baseline-sharing group (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Grid Layout 1, CSS Grid Layout 2, CSS Grid Layout 3

baseline-shift (CSS property) §

Defined in CSS Inline Layout 3

Referenced in CSS Typed OM 1

Related terms: CSS value baseline, CSS value bottom, CSS value center, CSS value sub, CSS value super, CSS value top

baseline-source (CSS property) §

Defined in CSS Inline Layout 3

Referenced in CSS Box Alignment 3

Related terms: CSS value auto, CSS value first, CSS value last

baseline-table (concept) §

Defined in SVG 2

FontMetrics.baselines (WebIDL attribute) §

Defined in Font Metrics API 1

GPUTextureViewDescriptor.baseMipLevel (WebIDL dictionary member) §

Defined in WebGPU

CSSFontPaletteValuesRule.basePalette (WebIDL attribute) §

Defined in CSS Fonts 4

BasePropertyIndexedKeyframe (WebIDL dictionary) §

Defined in Web Animations

Related terms: BasePropertyIndexedKeyframe.composite, BasePropertyIndexedKeyframe.easing, BasePropertyIndexedKeyframe.offset

see also WebIDLPedia

Node.baseURI (WebIDL attribute) §

Defined in DOM

CSSStyleSheetInit.baseURL (WebIDL dictionary member) §

Defined in CSSOM

URLPatternInit.baseURL (WebIDL dictionary member) §

Defined in URL Pattern

SVGAnimatedAngle.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedBoolean.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedEnumeration.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedInteger.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedLength.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedLengthList.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedNumber.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedNumberList.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedPreserveAspectRatio.baseVal (WebIDL attribute) §

Defined in SVG 2

Referenced in CSS Transforms 1

SVGAnimatedRect.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedString.baseVal (WebIDL attribute) §

Defined in SVG 2

SVGAnimatedTransformList.baseVal (WebIDL attribute) §

Defined in SVG 2

PASignalValue.baseValue (WebIDL dictionary member) §

Defined in Protected Audience

"basic" (value for ResponseType WebIDL enumeration) §

Defined in Fetch

basic filtered response (concept) §

Defined in Fetch

Referenced in Service Workers

basic language range (concept) §

Defined in Internationalization Glossary

basic multilingual plane (concept) §

Defined in Internationalization Glossary

basic shape (concept) §

Defined in SVG 2

basic URL parser (concept) §

Defined in URL

Referenced in HTML, URL Pattern, Cookie Store API, User Agent Interaction with Related Website Sets, Speculation Rules, Payment Method Identifiers, Payment Method Manifest, Payment Request API, WebRTC 1.0

Related terms: concept authority state, concept file host state, concept file slash state, concept file state, concept fragment state, concept host state, concept hostname state, concept no scheme state, concept opaque path state, concept path or authority state, concept path start state, concept path state, concept port state, concept query state, concept relative slash state, concept relative state, concept scheme start state, concept scheme state, concept special authority ignore slashes state, concept special authority slashes state, concept special relative or authority state, concept state override, concept url

<basic-shape> (CSS type) §

Defined in CSS Shapes 1

Referenced in CSS Shapes 2

Related terms: concept equivalent path, concept reference box, CSS function circle(), CSS function ellipse(), CSS function inset(), CSS function path(), CSS function polygon(), CSS function rect(), CSS function xywh()

<basic-shape> (CSS value for shape-outside ) §

Defined in CSS Shapes 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

<basic-shape-rect> (CSS type) §

Defined in CSS Shapes 1

Referenced in CSS Images 5

MLOpSupportLimits.batchNormalization (WebIDL dictionary member) §

Defined in Web Neural Network API

MLGraphBuilder.batchNormalization(input, mean, variance, options) (WebIDL operation) §

Defined in Web Neural Network API

BatteryManager (WebIDL interface) §

Defined in Battery Status API

Related terms: BatteryManager.charging, BatteryManager.chargingTime, BatteryManager.dischargingTime, BatteryManager.level, BatteryManager.onchargingchange, BatteryManager.onchargingtimechange, BatteryManager.ondischargingtimechange, BatteryManager.onlevelchange

see also WebIDLPedia

SerialOptions.baudRate (WebIDL dictionary member) §

Defined in Web Serial API

"bc1-rgba-unorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc1-rgba-unorm-srgb" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc2-rgba-unorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc2-rgba-unorm-srgb" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc3-rgba-unorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc3-rgba-unorm-srgb" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc4-r-snorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc4-r-unorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc5-rg-snorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc5-rg-unorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc6h-rgb-float" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc6h-rgb-ufloat" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc7-rgba-unorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bc7-rgba-unorm-srgb" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

USBBlocklistEntry.bcdDevice (WebIDL dictionary member) §

Defined in WebUSB API

bday (value for autocomplete attribute of button element, autocomplete attribute of fieldset element, autocomplete attribute of input element, autocomplete attribute of object element, autocomplete attribute of output element, autocomplete attribute of select element, autocomplete attribute of textarea element ) §

Defined in HTML

bday-day (value for autocomplete attribute of button element, autocomplete attribute of fieldset element, autocomplete attribute of input element, autocomplete attribute of object element, autocomplete attribute of output element, autocomplete attribute of select element, autocomplete attribute of textarea element ) §

Defined in HTML

bday-month (value for autocomplete attribute of button element, autocomplete attribute of fieldset element, autocomplete attribute of input element, autocomplete attribute of object element, autocomplete attribute of output element, autocomplete attribute of select element, autocomplete attribute of textarea element ) §

Defined in HTML

bday-year (value for autocomplete attribute of button element, autocomplete attribute of fieldset element, autocomplete attribute of input element, autocomplete attribute of object element, autocomplete attribute of output element, autocomplete attribute of select element, autocomplete attribute of textarea element ) §

Defined in HTML

bdi (markup element) §

Defined in HTML

Referenced in HTML Accessibility API Mappings 1.0, ARIA in HTML

bdo (markup element) §

Defined in HTML

Referenced in EPUB 3.3, HTML Accessibility API Mappings 1.0, ARIA in HTML

bearing angle (concept) §

Defined in CSS Values 3 , CSS Values 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

become browsing-context connected (concept) §

Defined in HTML

Referenced in Portals

become browsing-context disconnected (concept) §

Defined in HTML

Referenced in Portals

become disconnected (concept) §

Defined in HTML

Referenced in Pointer Lock 2.0

becomes connected (concept) §

Defined in HTML

::before (CSS selector) §

Defined in CSS Pseudo-Elements 4 , CSS 2.2 , Selectors 3

Referenced in CSS Display 4, CSS Overflow 5, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Conditional 5, CSS Containment 1, CSS Containment 2, CSS Generated Content 3, CSS Layout API 1, CSS Lists 3, CSS Nesting, CSS Paged Media 3, CSS Speech 1, CSS User Interface 4, CSSOM, Selectors 4, Selectors 4, WebVTT: The Web Video Text Tracks Format

:before (concept) §

Defined in CSS 2.1

before (concept for boundary point ) §

Defined in DOM

Referenced in execCommand, Selection API

before (CSS value for scroll-marker-group ) §

Defined in CSS Overflow 5

before (CSS value for content() ) §

Defined in CSS Generated Content 3

before flag (concept for easing function ) §

Defined in CSS Easing Functions 2

Referenced in Web Animations, Web Animations 2

before phase (concept for animation effect ) §

Defined in Web Animations

Referenced in CSS Animations 2, Web Animations 2

before-change style (concept) §

Defined in CSS Transitions

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Transitions 2, Web Animations

AnimationEffect.before(...effects) (WebIDL operation) §

Defined in Web Animations 2

ChildNode.before(...nodes) (WebIDL operation) §

Defined in DOM

beforeinstallprompt (event) §

Defined in Manifest Incubations

BeforeInstallPromptEvent (WebIDL interface) §

Defined in Manifest Incubations

Related terms: WebIDL constructor constructor(), BeforeInstallPromptEvent.prompt()

see also WebIDLPedia

beforematch (event for HTMLElement ) §

Defined in HTML

beforeprint (event for Window ) §

Defined in HTML

beforetoggle (event for HTMLElement ) §

Defined in HTML

beforeunload (event for Window ) §

Defined in HTML

Referenced in Prerendering Revamped

BeforeUnloadEvent (WebIDL interface) §

Defined in HTML

Referenced in DOM

Related terms: BeforeUnloadEvent.returnValue

see also WebIDLPedia

begin (markup attribute for animate ) §

Defined in SVG Animations 2

Referenced in SVG Animations 2, SVG 2

GPUCommandEncoder.beginComputePass(descriptor) (WebIDL operation) §

Defined in WebGPU

HandwritingSegment.beginIndex (WebIDL dictionary member) §

Defined in Handwriting Recognition API

GPUComputePassTimestampWrites.beginningOfPassWriteIndex (WebIDL dictionary member) §

Defined in WebGPU

GPURenderPassTimestampWrites.beginningOfPassWriteIndex (WebIDL dictionary member) §

Defined in WebGPU

GPURenderPassEncoder.beginOcclusionQuery(queryIndex) (WebIDL operation) §

Defined in WebGPU

CanvasDrawPath.beginPath() (WebIDL operation) §

Defined in HTML

HandwritingDrawingSegment.beginPointIndex (WebIDL dictionary member) §

Defined in Handwriting Recognition API

GPUCommandEncoder.beginRenderPass(descriptor) (WebIDL operation) §

Defined in WebGPU

behave as auto (concept) §

Defined in CSS Sizing 3

Referenced in CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Sizing 4, CSS Table 3

behavior (markup attribute for marquee ) §

Defined in HTML

behavior (concept) §

Defined in WebGPU Shading Language

HTMLMarqueeElement.behavior (WebIDL attribute) §

Defined in HTML

ScrollOptions.behavior (WebIDL dictionary member) §

Defined in CSSOM View

beige (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

beige (CSS value for <color>, <named-color> type ) §

Defined in CSS Color 4

being rendered (concept) §

Defined in HTML

Referenced in Speculation Rules, Page Lifecycle, URL Fragment Text Directives, CSS Spatial Navigation 1, CSS Transitions 2, CSSOM, CSSOM View, Paint Timing, Resize Observer

"belowThreshold" (value for KAnonStatus WebIDL enumeration) §

Defined in Protected Audience

bengali (CSS value for <counter-style-name> ) §

Defined in CSS Counter Styles 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

DeviceMotionEventRotationRate.beta (WebIDL attribute) §

Defined in Device Orientation and Motion

DeviceMotionEventRotationRateInit.beta (WebIDL dictionary member) §

Defined in Device Orientation and Motion

DeviceOrientationEvent.beta (WebIDL attribute) §

Defined in Device Orientation and Motion

DeviceOrientationEventInit.beta (WebIDL dictionary member) §

Defined in Device Orientation and Motion

MLGemmOptions.beta (WebIDL dictionary member) §

Defined in Web Neural Network API

MLHardSigmoidOptions.beta (WebIDL dictionary member) §

Defined in Web Neural Network API

MLLinearOptions.beta (WebIDL dictionary member) §

Defined in Web Neural Network API

bevel (CSS value for stroke-linejoin ) §

Defined in CSS Fill and Stroke 3

CanvasPath.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y) (WebIDL operation) §

Defined in HTML

BFC (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Overflow 4

<bg-clip> (CSS type) §

Defined in CSS Backgrounds 4

Related terms: CSS value border-area, CSS value text

<bg-image> (CSS type) §

Defined in CSS Backgrounds 3

<bg-layer> (CSS type) §

Defined in CSS Backgrounds 3

Referenced in CSS Backgrounds 4

<bg-position> (CSS type) §

Defined in CSS Backgrounds 4 , CSS Backgrounds 3

<bg-size> (CSS type) §

Defined in CSS Backgrounds 3

bgcolor (markup attribute for body ) §

Defined in HTML

bgcolor (markup attribute for table ) §

Defined in HTML

bgcolor (markup attribute for td, th element ) §

Defined in HTML

bgcolor (markup attribute for tr ) §

Defined in HTML

Document.bgColor (WebIDL attribute) §

Defined in HTML

HTMLBodyElement.bgColor (WebIDL attribute) §

Defined in HTML

HTMLMarqueeElement.bgColor (WebIDL attribute) §

Defined in HTML

HTMLTableCellElement.bgColor (WebIDL attribute) §

Defined in HTML

HTMLTableElement.bgColor (WebIDL attribute) §

Defined in HTML

HTMLTableRowElement.bgColor (WebIDL attribute) §

Defined in HTML

"BGRA" (value for VideoPixelFormat WebIDL enumeration) §

Defined in WebCodecs

"bgra8unorm" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bgra8unorm-srgb" (value for GPUTextureFormat WebIDL enumeration) §

Defined in WebGPU

"bgra8unorm-storage" (value for GPUFeatureName WebIDL enumeration) §

Defined in WebGPU

"BGRX" (value for VideoPixelFormat WebIDL enumeration) §

Defined in WebCodecs

bgsound (markup element) §

Defined in HTML

bias (markup attribute for feConvolveMatrix ) §

Defined in Filter Effects 1

MLBatchNormalizationOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLBatchNormalizationSupportLimits.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLConv2dOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLConv2dSupportLimits.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLConvTranspose2dOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLGruCellOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLGruCellSupportLimits.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLGruOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLGruSupportLimits.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLInstanceNormalizationOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLLayerNormalizationOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLLstmCellOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLLstmCellSupportLimits.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLLstmOptions.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLLstmSupportLimits.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

MLNormalizationSupportLimits.bias (WebIDL dictionary member) §

Defined in Web Neural Network API

SVGFEConvolveMatrixElement.bias (WebIDL attribute) §

Defined in Filter Effects 1

biased fragment depth (algorithm) §

Defined in WebGPU

Bicameral (concept) §

Defined in Internationalization Glossary

GenerateBidOutput.bid (WebIDL dictionary member) §

Defined in Protected Audience

ReportingBrowserSignals.bid (WebIDL dictionary member) §

Defined in Protected Audience

ScoreAdOutput.bid (WebIDL dictionary member) §

Defined in Protected Audience

BiddingBrowserSignals.bidCount (WebIDL dictionary member) §

Defined in Protected Audience

StorageInterestGroup.bidCount (WebIDL dictionary member) §

Defined in Protected Audience

GenerateBidOutput.bidCurrency (WebIDL dictionary member) §

Defined in Protected Audience

ReportingBrowserSignals.bidCurrency (WebIDL dictionary member) §

Defined in Protected Audience

ScoreAdOutput.bidCurrency (WebIDL dictionary member) §

Defined in Protected Audience

ScoringBrowserSignals.bidCurrency (WebIDL dictionary member) §

Defined in Protected Audience

BiddingBrowserSignals (WebIDL dictionary) §

Defined in Protected Audience

Related terms: BiddingBrowserSignals.adComponentsLimit, BiddingBrowserSignals.bidCount, BiddingBrowserSignals.crossOriginDataVersion, BiddingBrowserSignals.dataVersion, BiddingBrowserSignals.forDebuggingOnlyInCooldownOrLockout, BiddingBrowserSignals.joinCount, BiddingBrowserSignals.multiBidLimit, BiddingBrowserSignals.prevWinsMs, BiddingBrowserSignals.recency, BiddingBrowserSignals.requestedSize, BiddingBrowserSignals.seller, BiddingBrowserSignals.topLevelSeller, BiddingBrowserSignals.topWindowHostname, BiddingBrowserSignals.wasmHelper

see also WebIDLPedia

ScoringBrowserSignals.biddingDurationMsec (WebIDL dictionary member) §

Defined in Protected Audience

GenerateBidInterestGroup.biddingLogicURL (WebIDL dictionary member) §

Defined in Protected Audience

GenerateBidInterestGroup.biddingWasmHelperURL (WebIDL dictionary member) §

Defined in Protected Audience

bidi isolate (concept) §

Defined in Internationalization Glossary

Bidi isolation (concept) §

Defined in Internationalization Glossary

Referenced in CSS Ruby Annotation Layout 1, Secure Payment Confirmation

bidi paragraph (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Text 3, CSS Text 4

BiDi session (concept) §

Defined in WebDriver BiDi

Referenced in WebDriver

bidi-isolate (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Text 3, CSS Text 4

bidi-override (CSS value for unicode-bidi ) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Ruby Annotation Layout 1

bidirectional text (concept) §

Defined in Internationalization Glossary

bidirectionality (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Overflow 3

bidirectionality (bidi) (concept) §

Defined in CSS 2.1

big (markup element) §

Defined in HTML

String.big() (WebIDL operation) §

Defined in ECMAScript

Big5 (concept) §

Defined in Encoding

Referenced in HTML

Big5 decoder (concept) §

Defined in Encoding

Big5 encoder (concept) §

Defined in Encoding

BigInt (WebIDL interface) §

Defined in ECMAScript

Referenced in Web IDL

Related terms: new BigInt(value), BigInt.asIntN(bits, bigint), BigInt.asUintN(bits, bigint), BigInt.toLocaleString(reserved1, reserved2), BigInt.toString(radix), BigInt.valueOf()

see also WebIDLPedia

bigint (WebIDL interface) §

Defined in Web IDL

Referenced in Private Aggregation API, Protected Audience, Web Neural Network API, WebRTC Encoded Transform

see also WebIDLPedia

BigInt type (concept for ECMAScript ) §

Defined in ECMAScript

Referenced in HTML, ECMAScript Internationalization API, JSON.parse source text access, Web IDL

%BigInt.prototype% (WebIDL interface) §

Defined in ECMAScript

Referenced in ECMAScript Internationalization API

see also WebIDLPedia

new BigInt(value) (WebIDL constructor) §

Defined in ECMAScript

%BigInt% (WebIDL interface) §

Defined in ECMAScript

Referenced in ECMAScript Async Explicit Resource Management, ECMAScript Explicit Resource Management, Source Phase Imports

see also WebIDLPedia

BigInt64Array (WebIDL interface) §

Defined in Web IDL

Referenced in Web Cryptography API, Web Neural Network API

see also WebIDLPedia

%BigInt64Array% (WebIDL interface) §

Defined in ECMAScript

see also WebIDLPedia

BigIntBitwiseOp (algorithm) §

Defined in ECMAScript

BigInteger (WebIDL type alias) §

Defined in Web Cryptography API

see also WebIDLPedia

BigUint64Array (WebIDL interface) §

Defined in Web IDL

Referenced in Web Cryptography API, Web Neural Network API

see also WebIDLPedia

%BigUint64Array% (WebIDL interface) §

Defined in ECMAScript

see also WebIDLPedia

billing (value for autocomplete attribute of button element, autocomplete attribute of fieldset element, autocomplete attribute of input element, autocomplete attribute of object element, autocomplete attribute of output element, autocomplete attribute of select element, autocomplete attribute of textarea element ) §

Defined in HTML

binary data (concept for file entry ) §

Defined in File System

Referenced in File System Access

BinaryAnd (algorithm) §

Defined in ECMAScript

BinaryOr (algorithm) §

Defined in ECMAScript

BinaryType (WebIDL enumeration) §

Defined in WebSockets

Referenced in Presentation API, WebRTC 1.0

Related terms: value arraybuffer, value blob

see also WebIDLPedia

PresentationConnection.binaryType (WebIDL attribute) §

Defined in Presentation API

RTCDataChannel.binaryType (WebIDL attribute) §

Defined in WebRTC 1.0

WebSocket.binaryType (WebIDL attribute) §

Defined in WebSockets

Referenced in WebRTC 1.0

BinaryXor (algorithm) §

Defined in ECMAScript

GPUBindingCommandsMixin.[[bind_groups]] (internal slot) §

Defined in WebGPU

Function.bind(thisArg, ...args) (WebIDL operation) §

Defined in ECMAScript

GPUPipelineLayout.[[bindGroupLayouts]] (internal slot) §

Defined in WebGPU

GPUPipelineLayoutDescriptor.bindGroupLayouts (WebIDL dictionary member) §

Defined in WebGPU

GPUBindGroupEntry.binding (WebIDL dictionary member) §

Defined in WebGPU

GPUBindGroupLayoutEntry.binding (WebIDL dictionary member) §

Defined in WebGPU

Binding Edge (concept) §

Defined in CSS Paged Media 3

BindThisValue(V) (algorithm for Function Environment Record ) §

Defined in ECMAScript

BiquadFilterNode (WebIDL interface) §

Defined in Web Audio API , Web Audio API 1.1

Related terms: undefineddetune, undefinedfrequency, undefinedgain, undefinedQ, undefinedtype, undefinedBiquadFilterNode(context, options), undefinedBiquadFilterNode(context, options), undefinedgetFrequencyResponse(frequencyHz, magResponse, phaseResponse)

see also WebIDLPedia

BiquadFilterNode.BiquadFilterNode(context, options) (WebIDL operation) §

BiquadFilterNode.BiquadFilterNode(context, options) (WebIDL operation) §

Defined in Web Audio API , Web Audio API 1.1

new BiquadFilterNode(context, options) (WebIDL constructor) §

new BiquadFilterNode(context, options) (WebIDL constructor) §

Defined in Web Audio API , Web Audio API 1.1

BiquadFilterOptions (WebIDL dictionary) §

Defined in Web Audio API , Web Audio API 1.1

Related terms: undefineddetune, undefinedfrequency, undefinedgain, undefinedQ, undefinedtype

see also WebIDLPedia

BiquadFilterType (WebIDL enumeration) §

Defined in Web Audio API , Web Audio API 1.1

Related terms: value allpass, value bandpass, value highpass, value highshelf, value lowpass, value lowshelf, value notch, value peaking

see also WebIDLPedia

bisque (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

bisque (CSS value for <color>, <named-color> type ) §

Defined in CSS Color 4

'bitmap' media group (concept) §

Defined in CSS 2.1

UADataValues.bitness (WebIDL dictionary member) §

Defined in User-Agent Client Hints

AudioConfiguration.bitrate (WebIDL dictionary member) §

Defined in Media Capabilities

AudioEncoderConfig.bitrate (WebIDL dictionary member) §

Defined in WebCodecs

VideoConfiguration.bitrate (WebIDL dictionary member) §

Defined in Media Capabilities

VideoEncoderConfig.bitrate (WebIDL dictionary member) §

Defined in WebCodecs

BitrateMode (WebIDL enumeration) §

Defined in MediaStream Recording

Referenced in WebCodecs

Related terms: value constant, value variable

see also WebIDLPedia

AudioEncoderConfig.bitrateMode (WebIDL dictionary member) §

Defined in WebCodecs

VideoEncoderConfig.bitrateMode (WebIDL dictionary member) §

Defined in WebCodecs

MediaRecorderOptions.bitsPerSecond (WebIDL dictionary member) §

Defined in MediaStream Recording

black (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

black (CSS value for <color>, <named-color> type ) §

Defined in CSS Color 4 , CSS 2.2

Referenced in CSS Color 6, CSS Color 5, CSS Properties and Values API 1

blanchedalmond (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

blanchedalmond (CSS value for <color>, <named-color> type ) §

Defined in CSS Color 4

:blank (CSS value for @page ) §

Defined in CSS Paged Media 3

:blank (CSS selector) §

Defined in Selectors 4

"ble" (value for AuthenticatorTransport WebIDL enumeration) §

Defined in Web Authentication

bleed (CSS descriptor for @page ) §

Defined in CSS Paged Media 3

Related terms: CSS value auto

CSSPageDescriptors.bleed (WebIDL attribute) §

Defined in CSSOM

GPUColorTargetState.blend (WebIDL dictionary member) §

Defined in WebGPU

<blend-mode> (CSS type) §

Defined in Compositing 2 , Compositing 1

Referenced in CSS Color 6, Filter Effects 1

Related terms: CSS value color, CSS value color-burn, CSS value color-dodge, CSS value darken, CSS value difference, CSS value exclusion, CSS value hard-light, CSS value hue, CSS value lighten, CSS value luminosity, CSS value multiply, CSS value normal, CSS value overlay, CSS value saturation, CSS value screen, CSS value soft-light

[[blendConstant]] (internal slot for RenderState ) §

Defined in WebGPU

XRCompositionLayer.blendTextureSourceAlpha (WebIDL attribute) §

Defined in WebXR Layers API 1

blink (markup element) §

Defined in HTML

blink (CSS value for text-decoration-line ) §

Defined in CSS Text Decoration 3 , CSS Text Decoration 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

blink (CSS value for text-decoration ) §

Defined in CSS 2.2

String.blink() (WebIDL operation) §

Defined in ECMAScript

"blob" (value for BinaryType WebIDL enumeration) §

Defined in WebSockets

"blob" (value for XMLHttpRequestResponseType WebIDL enumeration) §

Defined in XMLHttpRequest

AuthenticationExtensionsLargeBlobOutputs.blob (WebIDL dictionary member) §

Defined in Web Authentication

Blob (WebIDL interface) §

Defined in File API

Referenced in Fetch, File System, HTML, Extending Storage Access API to non-cookie storage, WebSockets, Local Font Access, Clipboard API and events, Contact Picker API, MediaStream Image Capture, Indexed DB 3.0, MediaStream Recording, Trusted Types, XMLHttpRequest

Related terms: concept get stream, Blob.size, Blob.type, new Blob(blobParts, options), Blob.arrayBuffer(), Blob.bytes(), Blob.slice(start, end, contentType), Blob.stream(), Blob.text()

see also WebIDLPedia

blob URL (concept) §

Defined in File API

Referenced in Service Workers

blob URL entry (concept for url ) §

Defined in URL

Referenced in Fetch, HTML

blob URL entry (concept) §

Defined in File API

Referenced in HTML, URL

Related terms: concept environment, concept object

blob URL store (concept) §

Defined in File API

Referenced in HTML, URL

Body.blob() (WebIDL operation) §

Defined in Fetch

FontData.blob() (WebIDL operation) §

Defined in Local Font Access

PushMessageData.blob() (WebIDL operation) §

Defined in Push API

new Blob(blobParts, options) (WebIDL constructor) §

Defined in File API

BlobCallback (WebIDL callback) §

Defined in HTML

BlobEvent (WebIDL interface) §

Defined in MediaStream Recording

Related terms: BlobEvent.data, BlobEvent.timecode, new BlobEvent(type, eventInitDict)

see also WebIDLPedia

new BlobEvent(type, eventInitDict) (WebIDL constructor) §

Defined in MediaStream Recording

BlobEventInit (WebIDL dictionary) §

Defined in MediaStream Recording

Related terms: BlobEventInit.data, BlobEventInit.timecode

see also WebIDLPedia

BlobPart (WebIDL type alias) §

Defined in File API

see also WebIDLPedia

BlobPropertyBag (WebIDL dictionary) §

Defined in File API

Related terms: BlobPropertyBag.endings, BlobPropertyBag.type

see also WebIDLPedia

'block' (grammar) §

Defined in Content Security Policy 3

block (CSS value for <display-outside>, display property ) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Positioned Layout 4, URL Fragment Text Directives, CSS Snapshot 2022, CSS Snapshot 2023, CSS Fonts 4, CSS Inline Layout 3, CSS Ruby Annotation Layout 1, CSS Transitions 2

block (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Text 3, CSS Text 4, CSS 2.2

block (CSS value for anchor-size() ) §

Defined in CSS Anchor Positioning

block (CSS value for margin-trim ) §

Defined in CSS Box Model 4

block (CSS value for snapped descriptor of @container @rule ) §

Defined in CSS Conditional 5

block (CSS value for font-display descriptor of @font-face @rule ) §

Defined in CSS Fonts 4

Referenced in CSS Snapshot 2023

block (CSS value for footnote-display ) §

Defined in CSS GCPM 3

block (CSS value for footnote-policy ) §

Defined in CSS GCPM 3

"block" (value for ChildDisplayType WebIDL enumeration) §

Defined in CSS Layout API 1

block (CSS value for scroll-snap-type ) §

Defined in CSS Scroll Snap 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

block (CSS value for caret-shape ) §

Defined in CSS User Interface 4

block (concept) §

Defined in CSS 2.1

block (CSS value for display ) §

Defined in CSS 2.2

block (CSS value for scroll(), scroll-timeline-axis property, view-timeline-axis property ) §

Defined in Scroll-driven Animations

"block" (value for ScrollAxis WebIDL enumeration) §

Defined in Scroll-driven Animations

LayoutEdges.block (WebIDL attribute) §

Defined in CSS Layout API 1

ScrollIntoViewOptions.block (WebIDL dictionary member) §

Defined in CSSOM View

block at-rule (concept) §

Defined in CSS Syntax 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 5, CSS Cascading 6

block axis (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Multicol 2, Layout Instability, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Anchor Positioning, CSS Fragmentation 3, CSS Fragmentation 4, CSS Conditional 5, CSS Containment 2, CSS Flexbox 1, CSS Fonts 5, CSS Grid Layout 1, CSS Grid Layout 2, CSS Grid Layout 3, CSS Inline Layout 3, CSS Overflow 3, CSS Positioned Layout 3, CSS Pseudo-Elements 4, CSS Scroll Snap 1, CSS Sizing 3, CSS Sizing 4, CSS User Interface 4, CSS Values 4, Scroll-driven Animations

block bad port (concept) §

Defined in Fetch

Referenced in Fenced Frame, WebRTC 1.0, WebTransport

block box (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Positioned Layout 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Layout API 1, CSS Overflow 3, CSS Sizing 3, CSS Sizing 4, CSS Text 4, CSSOM View

block box (concept) §

Defined in CSS 2.1

block container (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Box Model 4, CSS Fragmentation 3, CSS Fragmentation 4, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Inline Layout 3, CSS Line Grid 1, CSS Lists 3, CSS Overflow 3, CSS Overflow 4, CSS Pseudo-Elements 4, CSS Ruby Annotation Layout 1, CSS Sizing 3, CSS Text 3, CSS Text 4, CSS Text Decoration 3, CSS Text Decoration 4, CSS Writing Modes 3, CSS Writing Modes 4

block container box (concept) §

Defined in CSS 2.1

block dimension (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

block end (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Overflow 5, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Anchor Positioning, CSS Fragmentation 3, CSS Fragmentation 4, CSS Conditional 5, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Grid Layout 3, CSS Inline Layout 3, CSS Logical Properties 1, CSS Overflow 3, CSSOM View

block flow direction (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Fragmentation 3, CSS Fragmentation 4, CSS Inline Layout 3, CSS Paged Media 3, CSS Scroll Anchoring 1, CSSOM View

block formatting context (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Grid Layout 1, CSS Grid Layout 2, CSS Inline Layout 3, CSS Layout API 1, CSS Overflow 4, CSS Pseudo-Elements 4, CSS Text 4, CSS Writing Modes 3, CSS Writing Modes 4

block formatting context root (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

block layout (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 4, CSS Grid Layout 1, CSS Grid Layout 2

FragmentResult.[[block size]] (internal slot) §

Defined in CSS Layout API 1

block size (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Fragmentation 3, CSS Fragmentation 4, CSS Conditional 5, CSS Containment 2, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Inline Layout 3, CSS Layout API 1, CSS Overflow 4, CSS Rhythmic Sizing, CSS Sizing 3, CSS User Interface 4

block start (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Overflow 5, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Anchor Positioning, CSS Fragmentation 3, CSS Fragmentation 4, CSS Conditional 5, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Grid Layout 3, CSS Inline Layout 3, CSS Layout API 1, CSS Logical Properties 1, CSS Overflow 3, CSS Positioned Layout 3

<block-contents> (CSS type) §

Defined in CSS Syntax 3

Referenced in CSS Cascading 6, CSS Conditional 5, CSS Nesting

<block-ellipsis> (CSS value for line-clamp ) §

Defined in CSS Overflow 4

block-ellipsis (CSS property) §

Defined in CSS Overflow 4

Referenced in CSS Overflow 3

Related terms: CSS value auto, CSS value none

block-end (CSS value for ::scroll-button(), <scroll-button-direction> type ) §

Defined in CSS Overflow 5

block-end (CSS value for <position-area>, position-area property ) §

Defined in CSS Anchor Positioning

block-end (CSS value for margin-trim ) §

Defined in CSS Box Model 4

block-end (CSS value for stuck descriptor of @container @rule ) §

Defined in CSS Conditional 5

block-end (CSS value for overflowing descriptor of @container @rule ) §

Defined in CSS Conditional 5

block-end (CSS value for box-snap ) §

Defined in CSS Line Grid 1

block-end (CSS value for float ) §

Defined in CSS Page Floats

block-end (CSS value for clear ) §

Defined in CSS Page Floats

block-end (CSS value for <position> ) §

Defined in CSS Values 5

block-level (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Positioned Layout 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Box Model 4, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Grid Layout 3, CSS Layout API 1, CSS Overflow 4, CSS Positioned Layout 3, CSS Pseudo-Elements 4, CSS Table 3, CSS Text 4, CSS Text Decoration 3, CSS Text Decoration 4, CSS Writing Modes 3, CSSOM View

block-level box (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Positioned Layout 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Fragmentation 3, CSS Fragmentation 4, CSS Flexbox 1, CSS Positioned Layout 3, CSS Sizing 4

block-level box (concept) §

Defined in CSS 2.1

block-level element (concept) §

Defined in CSS 2.1

"block-like" (value for LayoutSizingMode WebIDL enumeration) §

Defined in CSS Layout API 1

block-self-end (CSS value for <position-area>, position-area property ) §

Defined in CSS Anchor Positioning

block-self-start (CSS value for <position-area>, position-area property ) §

Defined in CSS Anchor Positioning

block-size (CSS descriptor for @container ) §

Defined in CSS Conditional 5

block-size (CSS property) §

Defined in CSS Logical Properties 1

Referenced in CSS Cascading 5, CSS Sizing 3, CSS Sizing 4, CSS Typed OM 1, CSSOM

Related terms: CSS value contain, CSS value fit-content, CSS value stretch

CSSPositionTryDescriptors.block-size (WebIDL attribute) §

Defined in CSS Anchor Positioning

block-start (CSS value for ::scroll-button(), <scroll-button-direction> type ) §

Defined in CSS Overflow 5

block-start (CSS value for <position-area>, position-area property ) §

Defined in CSS Anchor Positioning

block-start (CSS value for margin-trim ) §

Defined in CSS Box Model 4

block-start (CSS value for stuck descriptor of @container @rule ) §

Defined in CSS Conditional 5

block-start (CSS value for overflowing descriptor of @container @rule ) §

Defined in CSS Conditional 5

block-start (CSS value for box-snap ) §

Defined in CSS Line Grid 1

block-start (CSS value for float ) §

Defined in CSS Page Floats

block-start (CSS value for clear ) §

Defined in CSS Page Floats

block-start (CSS value for <position> ) §

Defined in CSS Values 5

block-step (CSS property) §

Defined in CSS Rhythmic Sizing

Referenced in CSS Typed OM 1

block-step-align (CSS property) §

Defined in CSS Rhythmic Sizing

Referenced in CSS Typed OM 1

Related terms: CSS value auto, CSS value center, CSS value down, CSS value end, CSS value nearest, CSS value start, CSS value up

block-step-insert (CSS property) §

Defined in CSS Rhythmic Sizing

Referenced in CSS Typed OM 1

Related terms: CSS value content-box, CSS value margin-box, CSS value padding-box

block-step-round (CSS property) §

Defined in CSS Rhythmic Sizing

Referenced in CSS Typed OM 1

block-step-size (CSS property) §

Defined in CSS Rhythmic Sizing

Referenced in CSS Typed OM 1, CSS Values 4

blockable mixed content (concept) §

Defined in Mixed Content

Referenced in Speculation Rules

BlockDeclarationInstantiation (algorithm) §

Defined in ECMAScript

blocked (event for IDBOpenDBRequest ) §

Defined in Indexed DB 3.0

SecurityPolicyViolationEvent.blockedURI (WebIDL attribute) §

Defined in Content Security Policy 3

SecurityPolicyViolationEventInit.blockedURI (WebIDL dictionary member) §

Defined in Content Security Policy 3

CSPViolationReportBody.blockedURL (WebIDL attribute) §

Defined in Content Security Policy 3

LayoutEdges.blockEnd (WebIDL attribute) §

Defined in CSS Layout API 1

LayoutConstraints.blockFragmentationOffset (WebIDL attribute) §

Defined in CSS Layout API 1

LayoutConstraintsOptions.blockFragmentationOffset (WebIDL dictionary member) §

Defined in CSS Layout API 1

LayoutConstraints.blockFragmentationType (WebIDL attribute) §

Defined in CSS Layout API 1

LayoutConstraintsOptions.blockFragmentationType (WebIDL dictionary member) §

Defined in CSS Layout API 1

BlockFragmentationType (WebIDL enumeration) §

Defined in CSS Layout API 1

Related terms: value column, value none, value page, value region

see also WebIDLPedia

blockify (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Grid Layout 3, CSS Layout API 1, CSS Positioned Layout 3

blocking (markup attribute for link ) §

Defined in HTML

Referenced in HTML Accessibility API Mappings 1.0

blocking (markup attribute for style ) §

Defined in HTML

blocking (markup attribute for script ) §

Defined in HTML

"blocking" (value for RenderBlockingStatusType WebIDL enumeration) §

Defined in Resource Timing

HTMLLinkElement.blocking (WebIDL attribute) §

Defined in HTML

HTMLScriptElement.blocking (WebIDL attribute) §

Defined in HTML

Referenced in CSS View Transitions 2

HTMLStyleElement.blocking (WebIDL attribute) §

Defined in HTML

Referenced in CSS View Transitions 2

PerformanceLongAnimationFrameTiming.blockingDuration (WebIDL attribute) §

Defined in Long Animation Frames API

LayoutFragment.blockOffset (WebIDL attribute) §

Defined in CSS Layout API 1

blockquote (markup element) §

Defined in HTML

Referenced in execCommand, HTML Accessibility API Mappings 1.0, ARIA in HTML, WAI-ARIA, WAI-ARIA

Related terms: markup attribute cite

CSSPositionTryDescriptors.blockSize (WebIDL attribute) §

Defined in CSS Anchor Positioning

FlacEncoderConfig.blockSize (WebIDL dictionary member) §

Defined in FLAC WebCodecs Registration

FragmentResult.blockSize (WebIDL attribute) §

Defined in CSS Layout API 1

FragmentResultOptions.blockSize (WebIDL dictionary member) §

Defined in CSS Layout API 1

LayoutFragment.blockSize (WebIDL attribute) §

Defined in CSS Layout API 1

ResizeObserverSize.blockSize (WebIDL attribute) §

Defined in Resize Observer

LayoutEdges.blockStart (WebIDL attribute) §

Defined in CSS Layout API 1

blue (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

blue (CSS value for <color>, <named-color> type ) §

Defined in CSS Color 4 , CSS 2.2

Referenced in CSS Linked Parameters, CSS Color 5, CSS Properties and Values API 1, CSS Syntax 3, CSS Transitions

GPUColorWrite.BLUE (WebIDL constant) §

Defined in WebGPU

Bluetooth (WebIDL interface) §

Defined in Web Bluetooth

Referenced in Web Bluetooth Scanning

Related terms: Bluetooth.[[activeScans]], Bluetooth.[[attributeInstanceMap]], Bluetooth.[[deviceInstanceMap]], Bluetooth.onavailabilitychanged, undefined[[referringDevice]], event availabilitychanged, Bluetooth.getAvailability(), Bluetooth.getDevices(), Bluetooth.requestDevice(options), Bluetooth.requestLEScan(options)

see also WebIDLPedia

"bluetooth" (permission name) §

Defined in Web Bluetooth

Referenced in Web Bluetooth Scanning

"bluetooth" (value for ConnectionType WebIDL enumeration) §

Defined in Network Information API

Navigator.bluetooth (WebIDL attribute) §

Defined in Web Bluetooth

Bluetooth device (concept) §

Defined in Web Bluetooth

Referenced in Web Bluetooth Scanning

"bluetooth-le-scan" (value for PermissionName WebIDL enumeration) §

Defined in Web Bluetooth Scanning

BluetoothAdvertisingEvent (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothAdvertisingEvent.appearance, BluetoothAdvertisingEvent.device, BluetoothAdvertisingEvent.manufacturerData, BluetoothAdvertisingEvent.name, BluetoothAdvertisingEvent.rssi, BluetoothAdvertisingEvent.serviceData, BluetoothAdvertisingEvent.txPower, BluetoothAdvertisingEvent.uuids, new BluetoothAdvertisingEvent(type, init)

see also WebIDLPedia

new BluetoothAdvertisingEvent(type, init) (WebIDL constructor) §

Defined in Web Bluetooth

BluetoothAdvertisingEventInit (WebIDL dictionary) §

Defined in Web Bluetooth

Related terms: BluetoothAdvertisingEventInit.appearance, BluetoothAdvertisingEventInit.device, BluetoothAdvertisingEventInit.manufacturerData, BluetoothAdvertisingEventInit.name, BluetoothAdvertisingEventInit.rssi, BluetoothAdvertisingEventInit.serviceData, BluetoothAdvertisingEventInit.txPower, BluetoothAdvertisingEventInit.uuids

see also WebIDLPedia

BluetoothCharacteristicProperties (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothCharacteristicProperties.authenticatedSignedWrites, BluetoothCharacteristicProperties.broadcast, BluetoothCharacteristicProperties.indicate, BluetoothCharacteristicProperties.notify, BluetoothCharacteristicProperties.read, BluetoothCharacteristicProperties.reliableWrite, BluetoothCharacteristicProperties.writableAuxiliaries, BluetoothCharacteristicProperties.write, BluetoothCharacteristicProperties.writeWithoutResponse

see also WebIDLPedia

BluetoothCharacteristicUUID (WebIDL type alias) §

Defined in Web Bluetooth

see also WebIDLPedia

BluetoothDataFilter (WebIDL interface) §

Defined in Web Bluetooth Scanning

Related terms: BluetoothDataFilter.dataPrefix, BluetoothDataFilter.mask, new BluetoothDataFilter(init)

see also WebIDLPedia

new BluetoothDataFilter(init) (WebIDL constructor) §

Defined in Web Bluetooth Scanning

BluetoothDataFilterInit (WebIDL dictionary) §

Defined in Web Bluetooth

Referenced in Web Bluetooth Scanning

Related terms: concept canonicalizing, concept matches, concept strict subset, BluetoothDataFilterInit.dataPrefix, BluetoothDataFilterInit.mask

see also WebIDLPedia

BluetoothDescriptorUUID (WebIDL type alias) §

Defined in Web Bluetooth

see also WebIDLPedia

BluetoothDevice (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothDevice.[[allowedManufacturerData]], BluetoothDevice.[[allowedServices]], BluetoothDevice.[[context]], undefined[[gatt]], BluetoothDevice.id, BluetoothDevice.name, BluetoothDevice.[[representedDevice]], BluetoothDevice.[[returnedFromScans]], BluetoothDevice.[[watchAdvertisementsState]], BluetoothDevice.watchingAdvertisements, BluetoothDevice.forget(), BluetoothDevice.watchAdvertisements(options)

see also WebIDLPedia

BluetoothDeviceEventHandlers (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothDeviceEventHandlers.onadvertisementreceived, BluetoothDeviceEventHandlers.ongattserverdisconnected, event advertisementreceived, event gattserverdisconnected

see also WebIDLPedia

BluetoothLEScan (WebIDL interface) §

Defined in Web Bluetooth Scanning

Related terms: BluetoothLEScan.acceptAllAdvertisements, BluetoothLEScan.active, BluetoothLEScan.filters, BluetoothLEScan.keepRepeatedDevices, BluetoothLEScan.stop()

see also WebIDLPedia

BluetoothLEScanFilter (WebIDL interface) §

Defined in Web Bluetooth Scanning

Related terms: BluetoothLEScanFilter.manufacturerData, BluetoothLEScanFilter.name, BluetoothLEScanFilter.namePrefix, BluetoothLEScanFilter.serviceData, BluetoothLEScanFilter.services, new BluetoothLEScanFilter(init)

see also WebIDLPedia

new BluetoothLEScanFilter(init) (WebIDL constructor) §

Defined in Web Bluetooth Scanning

BluetoothLEScanFilterInit (WebIDL dictionary) §

Defined in Web Bluetooth

Referenced in Web Bluetooth Scanning

Related terms: concept canonicalizing, BluetoothLEScanFilterInit.manufacturerData, BluetoothLEScanFilterInit.name, BluetoothLEScanFilterInit.namePrefix, BluetoothLEScanFilterInit.serviceData, BluetoothLEScanFilterInit.services

see also WebIDLPedia

BluetoothLEScanOptions (WebIDL dictionary) §

Defined in Web Bluetooth Scanning

Related terms: BluetoothLEScanOptions.acceptAllAdvertisements, BluetoothLEScanOptions.filters, BluetoothLEScanOptions.keepRepeatedDevices

see also WebIDLPedia

BluetoothLEScanPermissionDescriptor (WebIDL dictionary) §

Defined in Web Bluetooth Scanning

Related terms: BluetoothLEScanPermissionDescriptor.acceptAllAdvertisements, BluetoothLEScanPermissionDescriptor.filters, BluetoothLEScanPermissionDescriptor.keepRepeatedDevices

see also WebIDLPedia

BluetoothLEScanPermissionResult (WebIDL interface) §

Defined in Web Bluetooth Scanning

Related terms: BluetoothLEScanPermissionResult.scans

see also WebIDLPedia

BluetoothManufacturerDataFilter (WebIDL interface) §

Defined in Web Bluetooth Scanning

Related terms: new BluetoothManufacturerDataFilter(init)

see also WebIDLPedia

new BluetoothManufacturerDataFilter(init) (WebIDL constructor) §

Defined in Web Bluetooth Scanning

BluetoothManufacturerDataFilterInit (WebIDL dictionary) §

Defined in Web Bluetooth

Related terms: BluetoothManufacturerDataFilterInit.companyIdentifier

see also WebIDLPedia

BluetoothManufacturerDataMap (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothManufacturerDataMap.[[BackingMap]]

see also WebIDLPedia

BluetoothPermissionDescriptor (WebIDL dictionary) §

Defined in Web Bluetooth

Related terms: BluetoothPermissionDescriptor.acceptAllDevices, BluetoothPermissionDescriptor.deviceId, BluetoothPermissionDescriptor.filters, BluetoothPermissionDescriptor.optionalManufacturerData, BluetoothPermissionDescriptor.optionalServices

see also WebIDLPedia

BluetoothPermissionResult (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothPermissionResult.devices

see also WebIDLPedia

BluetoothPermissionStorage (WebIDL dictionary) §

Defined in Web Bluetooth

Related terms: BluetoothPermissionStorage.allowedDevices

see also WebIDLPedia

BluetoothRemoteGATTCharacteristic (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothRemoteGATTCharacteristic.properties, BluetoothRemoteGATTCharacteristic.[[representedCharacteristic]], BluetoothRemoteGATTCharacteristic.service, BluetoothRemoteGATTCharacteristic.uuid, BluetoothRemoteGATTCharacteristic.value, event characteristicvaluechanged, BluetoothRemoteGATTCharacteristic.getDescriptor(descriptor), BluetoothRemoteGATTCharacteristic.getDescriptors(descriptor), BluetoothRemoteGATTCharacteristic.readValue(), BluetoothRemoteGATTCharacteristic.startNotifications(), BluetoothRemoteGATTCharacteristic.stopNotifications(), BluetoothRemoteGATTCharacteristic.writeValue(value), BluetoothRemoteGATTCharacteristic.writeValueWithoutResponse(value), BluetoothRemoteGATTCharacteristic.writeValueWithResponse(value)

see also WebIDLPedia

BluetoothRemoteGATTDescriptor (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothRemoteGATTDescriptor.characteristic, BluetoothRemoteGATTDescriptor.[[representedDescriptor]], BluetoothRemoteGATTDescriptor.uuid, BluetoothRemoteGATTDescriptor.value, BluetoothRemoteGATTDescriptor.readValue(), BluetoothRemoteGATTDescriptor.writeValue(value)

see also WebIDLPedia

BluetoothRemoteGATTServer (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothRemoteGATTServer.[[activeAlgorithms]], BluetoothRemoteGATTServer.connected, BluetoothRemoteGATTServer.device, BluetoothRemoteGATTServer.connect(), BluetoothRemoteGATTServer.disconnect(), BluetoothRemoteGATTServer.getPrimaryService(service), BluetoothRemoteGATTServer.getPrimaryServices(service)

see also WebIDLPedia

BluetoothRemoteGATTService (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothRemoteGATTService.device, BluetoothRemoteGATTService.isPrimary, BluetoothRemoteGATTService.[[representedService]], BluetoothRemoteGATTService.uuid, event serviceadded, event servicechanged, event serviceremoved, BluetoothRemoteGATTService.getCharacteristic(characteristic), BluetoothRemoteGATTService.getCharacteristics(characteristic), BluetoothRemoteGATTService.getIncludedService(service), BluetoothRemoteGATTService.getIncludedServices(service)

see also WebIDLPedia

SerialPortFilter.bluetoothServiceClassId (WebIDL dictionary member) §

Defined in Web Serial API

SerialPortInfo.bluetoothServiceClassId (WebIDL dictionary member) §

Defined in Web Serial API

BluetoothServiceDataFilter (WebIDL interface) §

Defined in Web Bluetooth Scanning

Related terms: new BluetoothServiceDataFilter(init)

see also WebIDLPedia

new BluetoothServiceDataFilter(init) (WebIDL constructor) §

Defined in Web Bluetooth Scanning

BluetoothServiceDataFilterInit (WebIDL dictionary) §

Defined in Web Bluetooth

Related terms: BluetoothServiceDataFilterInit.service

see also WebIDLPedia

BluetoothServiceDataMap (WebIDL interface) §

Defined in Web Bluetooth

Related terms: BluetoothServiceDataMap.[[BackingMap]]

see also WebIDLPedia

BluetoothServiceUUID (WebIDL type alias) §

Defined in Web Bluetooth

Referenced in Web Serial API

see also WebIDLPedia

BluetoothUUID (WebIDL interface) §

Defined in Web Bluetooth

Referenced in Web Serial API

Related terms: BluetoothUUID.canonicalUUID(alias), BluetoothUUID.getCharacteristic(name), BluetoothUUID.getDescriptor(name), BluetoothUUID.getService(name)

see also WebIDLPedia

blueviolet (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

blueviolet (CSS value for <color>, <named-color> type ) §

Defined in CSS Color 4

blur (event for HTMLElement, Window interface ) §

Defined in HTML

blur radius (concept for box-shadow ) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

blur() (CSS function for filter ) §

Defined in Filter Effects 1

Referenced in CSS Containment 1, CSS Containment 2

HTMLOrSVGElement.blur() (WebIDL operation) §

Defined in HTML

Window.blur() (WebIDL operation) §

Defined in HTML

BoD (concept) §

Defined in W3C Process Document

body (concept) §

Defined in Fetch

Referenced in WebDriver BiDi, Attribution Reporting, Background Fetch, Fenced Frame, Loading Signed Exchanges, Reporting API, Service Workers

Related terms: concept clone, concept fully read, concept incrementally read, concept length, concept source, concept stream

body (concept for body with type ) §

Defined in Fetch

Referenced in XMLHttpRequest

body (concept for request ) §

Defined in Fetch

Referenced in HTML, Private Aggregation API, Streams, WebDriver BiDi, Attribution Reporting, Background Fetch, Fenced Frame, Prefetch, Protected Audience, Loading Signed Exchanges, Beacon, Content Security Policy 3, Federated Credential Management API, Service Workers, WebDriver, XMLHttpRequest

body (concept for response ) §

Defined in Fetch

Referenced in HTML, WebDriver BiDi, Background Fetch, Isolated Contexts, Protected Audience, Loading Signed Exchanges, Payment Method Manifest, Service Workers, XMLHttpRequest

body (markup element) §

Defined in HTML

Referenced in Compatibility, DOM, Compositing 2, Quirks Mode, Compositing 1, CSS Backgrounds 3, CSS Color Adjustment 1, CSS Containment 1, CSS Containment 2, CSS Display 3, CSS Overflow 3, CSS Scroll Snap 1, CSS Scrollbars Styling 1, CSS Writing Modes 3, CSS Writing Modes 4, CSSOM View, HTML Accessibility API Mappings 1.0, ARIA in HTML

Related terms: markup attribute alink, markup attribute bgcolor, markup attribute bottommargin, markup attribute leftmargin, markup attribute link, markup attribute marginheight, markup attribute marginwidth, markup attribute rightmargin, markup attribute text, markup attribute topmargin, markup attribute vlink

body (markup element) §

Defined in EPUB 3.3

body (concept for report ) §

Defined in Reporting API

Referenced in Network Reporting API, Crash Reporting, Scripting Policy, Deprecation Reporting, Intervention Reporting, Permissions Policy

Body.body (WebIDL attribute) §

Defined in Fetch

CSSParserAtRule.body (WebIDL attribute) §

Defined in CSS Parser API

CSSParserBlock.body (WebIDL attribute) §

Defined in CSS Parser API

CSSParserDeclaration.body (WebIDL attribute) §

Defined in CSS Parser API

CSSParserQualifiedRule.body (WebIDL attribute) §

Defined in CSS Parser API

Document.body (WebIDL attribute) §

Defined in HTML

Notification.body (WebIDL attribute) §

Defined in Notifications API

NotificationOptions.body (WebIDL dictionary member) §

Defined in Notifications API

Report.body (WebIDL attribute) §

Defined in Reporting API

RequestInit.body (WebIDL dictionary member) §

Defined in Fetch

Body (WebIDL interface) §

Defined in Fetch

Related terms: concept unusable, Body.body, Body.bodyUsed, Body.arrayBuffer(), Body.blob(), Body.bytes(), Body.formData(), Body.json(), Body.text()

see also WebIDLPedia

body info (concept for response ) §

Defined in Fetch

Referenced in HTML, Service Workers

body with type (concept) §

Defined in Fetch

Related terms: concept body, concept type

BodyInit (WebIDL type alias) §

Defined in Fetch

Referenced in Beacon

Related terms: concept extract, concept safely extract

see also WebIDLPedia

Body.bodyUsed (WebIDL attribute) §

Defined in Fetch

bold (CSS value for font-weight ) §

Defined in CSS Fonts 4 , CSS 2.2

Referenced in CSS Snapshot 2023, WebVTT: The Web Video Text Tracks Format

String.bold() (WebIDL operation) §

Defined in ECMAScript

bolder (CSS value for font-weight ) §

Defined in CSS Fonts 4 , CSS 2.2

Referenced in CSS Snapshot 2023, CSS Cascading 4, CSS Cascading 5

BOM sniff (concept) §

Defined in Encoding

Referenced in HTML

bookmark (value for rel attribute of a, rel attribute of area element ) §

Defined in HTML

bookmark-label (CSS property) §

Defined in CSS Generated Content 3

Referenced in CSS Typed OM 1

Related terms: CSS value <content-list>

bookmark-level (CSS property) §

Defined in CSS Generated Content 3

Referenced in CSS Typed OM 1

Related terms: CSS value none

bookmark-state (CSS property) §

Defined in CSS Generated Content 3

Referenced in CSS Typed OM 1

Related terms: CSS value closed, CSS value open

boolean (concept) §

Defined in Infra

Referenced in Private Aggregation API, The Storage Access API, Source Map, URL Pattern, Web IDL, Attribution Reporting, Fenced Frame, Isolated Contexts, Manifest Incubations, Prefetch, Observable, Measure Memory API, Portals, HTML Sanitizer API, Prioritized Task Scheduling, Shared Storage API, Protected Audience, WebUSB API, Window Controls Overlay, Ambient Light Sensor, Web Application Manifest, Contact Picker API, CSS Properties and Values API 1, Federated Credential Management API, Generic Sensor API, JSON-LD 1.1 Processing Algorithms and API, JSON-LD 1.1 Framing, JSON-LD 1.1, MiniApp Manifest, Permissions, RDF Dataset Canonicalization, RDF 1.2 Concepts and Abstract Syntax, Verifiable Credential Data Integrity 1.0, Verifiable Credentials Data Model v2.0, Web Authentication, Web Neural Network API

boolean (WebIDL interface) §

Defined in Web IDL

Referenced in Console, DOM, Encoding, Fetch, CTAP, File System, Fullscreen API, HTML, Notifications API, Topics API, GPC, Extending Storage Access API to non-cookie storage, The Storage Access API, Storage, Streams, URL, URL Pattern, execCommand, Gamepad Extensions, Web NFC API, IceTransport Extensions for WebRTC, WebAssembly JavaScript Interface: Content Security Policy, WebAssembly JavaScript Interface: ESM Integration, WebAssembly JavaScript Interface: Exception Handling, WebAssembly JavaScript Interface: Promise Integration, WebAssembly JavaScript Interface: JS String Builtins, WebAssembly JavaScript Interface: Type Reflection, Web Bluetooth, Web Bluetooth Scanning, WebSockets, Iframe credentialless, Attribution Reporting, Background Sync, Cookie Store API, Direct Sockets API, Document Picture-in-Picture, File and Directory Entries API, Fenced Frame, File System Access, Handwriting Recognition API, Input Device Capabilities, Early detection of input events, JS Self-Profiling API, Layout Instability, Prerendering Revamped, Observable, Page Lifecycle, preferCurrentTab, HTML Sanitizer API, Save Data API, Web Serial API, Accelerated Shape Detection in Images, Shared Storage API, Storage Buckets API, Private State Token API, Protected Audience, User-Agent Client Hints, Web Smart Card API, WebHID API, WebUSB API, Window Controls Overlay, Battery Status API, Beacon, Capture Handle - Bootstrapping Collaboration when Screensharing, Clipboard API and events, Contact Picker API, Credential Management 1, CSS Conditional 3, CSS Containment 2, CSS Font Loading 3, CSS Painting API 1, CSS Properties and Values API 1, CSS Regions 1, CSS Typed OM 1, CSSOM, CSSOM View, Encrypted Media Extensions, EPUB Reading Systems 3.3, Event Timing API, Federated Credential Management API, Gamepad, Generic Sensor API, Geolocation, Geometry Interfaces 1, MediaStream Image Capture, Indexed DB 3.0, Intersection Observer, Media Capabilities, Media Source Extensions™, Media Capture and Streams, MediaStreamTrack Insertable Media Processing using Streams, Media Session, MediaStream Recording, Device Orientation and Motion, Payment Handler API, Payment Request API, Performance Timeline, Permissions Policy, Picture-in-Picture, Pointer Events, Pointer Lock 2.0, Presentation API, Proximity Sensor, Push API, Remote Playback API, Reporting API, requestIdleCallback() Cooperative Scheduling of Background Tasks, Screen Capture, Screen Wake Lock API, Secure Payment Confirmation, Selection API, Service Workers, Touch Events, Trusted Types, UI Events, Vibration API, VirtualKeyboard API, WebAssembly JavaScript Interface, Web Animations, Web Locks API, Web Share API, Web Audio API, Web Audio API 1.1, Web Authentication, Opus WebCodecs Registration, WebCodecs, Web Cryptography API, WebGPU, Web MIDI API, Web Neural Network API, Identity for WebRTC 1.0, WebRTC Statistics, WebRTC 1.0, WebTransport, WebVTT: The Web Video Text Tracks Format, WebXR Augmented Reality 1, WebXR Hand Input 1, WebXR Device API, WebXR Layers API 1, Window Management, XMLHttpRequest, DNT

see also WebIDLPedia

Boolean (WebIDL interface) §

Defined in ECMAScript

Referenced in Generic Sensor API

Related terms: new Boolean(value), Boolean.toString(), Boolean.valueOf()

see also WebIDLPedia

boolean context (concept) §

Defined in Media Queries 4 , Media Queries 5

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Conditional 5

Boolean type (concept for ECMAScript ) §

Defined in ECMAScript

Referenced in HTML, ECMAScript Internationalization API, Intl.DurationFormat, Web IDL

XPathResult.BOOLEAN_TYPE (WebIDL constant) §

Defined in DOM

<boolean-constant> (CSS type) §

Defined in CSS Conditional Values 1

<boolean-expr[]> (CSS type) §

Defined in CSS Values 5

%Boolean.prototype% (WebIDL interface) §

Defined in ECMAScript

see also WebIDLPedia

new Boolean(value) (WebIDL constructor) §

Defined in ECMAScript

%Boolean% (WebIDL interface) §

Defined in ECMAScript

Referenced in ECMAScript Async Explicit Resource Management, ECMAScript Explicit Resource Management, Source Phase Imports

see also WebIDLPedia

XPathResult.booleanValue (WebIDL attribute) §

Defined in DOM

Bopomofo characters (concept) §

Defined in CSS Ruby Annotation Layout 1

Referenced in CSS Text 4

border (markup attribute for input ) §

Defined in HTML

border (markup attribute for img ) §

Defined in HTML

border (markup attribute for object ) §

Defined in HTML

border (markup attribute for table ) §

Defined in HTML

border (CSS property) §

Defined in CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Display 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 3, CSS Box Model 4, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Conditional 3, CSS Display 3, CSS Multicol 1, CSS Sizing 3, CSS Speech 1, CSS Text 3, CSS Text 4, CSS Typed OM 1, CSS User Interface 4, Filter Effects 1

Related terms: CSS value dashed, CSS value dotted, CSS value double, CSS value groove, CSS value hidden, CSS value inset, CSS value medium, CSS value none, CSS value outset, CSS value ridge, CSS value solid, CSS value thick, CSS value thin

border (concept) §

Defined in CSS Box Model 3 , CSS Box Model 4

Referenced in CSS Backgrounds 3, CSS Inline Layout 3, CSS Ruby Annotation Layout 1, CSS Text 4

"border" (value for CSSBoxType WebIDL enumeration) §

Defined in CSSOM View

HTMLImageElement.border (WebIDL attribute) §

Defined in HTML

HTMLObjectElement.border (WebIDL attribute) §

Defined in HTML

HTMLTableElement.border (WebIDL attribute) §

Defined in HTML

border area (concept) §

Defined in CSS Box Model 3 , CSS Box Model 4

Referenced in CSS Backgrounds 3, CSS Fragmentation 3, CSS Fragmentation 4, Resize Observer

border box (concept) §

Defined in CSS Box Model 3 , CSS Box Model 4

Referenced in CSS Borders and Box Decorations 4, CSS Shapes 2, CSS Anchor Positioning, CSS Backgrounds 3, CSS Positioned Layout 3, CSS Sizing 3, CSS View Transitions 1, CSS Exclusions 1, CSSOM View, Resize Observer

border box (concept) §

Defined in CSS 2.1

border edge (concept) §

Defined in CSS Box Model 3 , CSS Box Model 4

Referenced in CSS Backgrounds 3, CSS Containment 2, CSS Inline Layout 3, CSS Overflow 3, CSS Overflow 4, CSS Positioned Layout 3, CSS User Interface 4, CSSOM View, Scroll-driven Animations

border edge (concept) §

Defined in CSS 2.1

border image (concept) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border image area (concept) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Images 3

border image region (concept) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border properties (concept) §

Defined in CSS Box Model 3 , CSS Box Model 4

border width (concept) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border-area (CSS value for <bg-clip>, background-clip property ) §

Defined in CSS Backgrounds 4

border-block (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-block-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-block-end (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-block-end-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4, CSSOM

border-block-end-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-block-end-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4

border-block-end-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4

border-block-start (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-block-start-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4, CSSOM

border-block-start-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-block-start-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4

border-block-start-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4

border-block-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-block-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-bottom (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Typed OM 1

border-bottom-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Color 4, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4, CSSOM

Related terms: CSS value <color>

border-bottom-left-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS User Interface 4

border-bottom-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-bottom-right-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS User Interface 4

border-bottom-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4

Related terms: CSS value dashed, CSS value dashed, CSS value dotted, CSS value dotted, CSS value double, CSS value double, CSS value groove, CSS value groove, CSS value hidden, CSS value hidden, CSS value inset, CSS value inset, CSS value none, CSS value none, CSS value outset, CSS value outset, CSS value ridge, CSS value ridge, CSS value solid, CSS value solid

border-bottom-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Logical Properties 1, CSS Paged Media 3, CSS Positioned Layout 3, CSS Typed OM 1, CSS User Interface 3, CSS User Interface 4, CSS Values 4, Web Animations

Related terms: CSS value <length>, CSS value medium, CSS value medium, CSS value thick, CSS value thick, CSS value thin, CSS value thin

border-boundary (CSS property) §

Defined in CSS Round Display 1

Referenced in CSS Typed OM 1

border-box (CSS value for background-clip ) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border-box (CSS value for background-origin ) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border-box (CSS value for <box>, <coord-box> type, <geometry-box> type, <layout-box> type, <paint-box> type, <shape-box> type, <visual-box> type ) §

Defined in CSS Box Model 3 , CSS Box Model 4

border-box (CSS value for initial-letter-align ) §

Defined in CSS Inline Layout 3

border-box (CSS value for mask-clip ) §

Defined in CSS Masking 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border-box (CSS value for mask-origin ) §

Defined in CSS Masking 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border-box (CSS value for <shape-box>, shape-outside property ) §

Defined in CSS Shapes 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border-box (CSS value for box-sizing ) §

Defined in CSS Sizing 3 , CSS User Interface 3

Referenced in Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023

border-box (CSS value for transform-box ) §

Defined in CSS Transforms 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

border-box (CSS value for fill-origin ) §

Defined in CSS Fill and Stroke 3

border-box (CSS value for stroke-origin ) §

Defined in CSS Fill and Stroke 3

"border-box" (value for ResizeObserverBoxOptions WebIDL enumeration) §

Defined in Resize Observer

border-clip (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-clip-bottom (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-clip-left (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-clip-right (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-clip-top (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-collapse (CSS property) §

Defined in CSS Table 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Borders and Box Decorations 4, CSS Backgrounds 3, CSS Typed OM 1

Related terms: CSS value collapse, CSS value separate

border-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Backgrounds 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 5, CSS Color 4, CSS Color Adjustment 1, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4, CSS Values 3, CSS Values 4, Web Animations

Related terms: CSS value <color>, CSS value logical

border-end-end-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS User Interface 4

border-end-start-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS User Interface 4

border-image (CSS property) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Fragmentation 3, CSS Fragmentation 4, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Images 3, CSS Painting API 1, CSS Table 3, CSS Typed OM 1, Filter Effects 1, Mixed Content

border-image-outset (CSS property) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Typed OM 1, CSS User Interface 4

border-image-repeat (CSS property) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Images 3, CSS Typed OM 1, CSS User Interface 4

Related terms: CSS value repeat, CSS value round, CSS value space, CSS value stretch

border-image-slice (CSS property) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Typed OM 1, CSS User Interface 4

Related terms: CSS value fill

border-image-source (CSS property) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Table 3, CSS Typed OM 1, CSS User Interface 4

border-image-width (CSS property) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Typed OM 1, CSS User Interface 4

Related terms: CSS value auto

border-inline (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-inline-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-inline-end (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-inline-end-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4, CSSOM

border-inline-end-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-inline-end-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4

border-inline-end-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4

border-inline-start (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-inline-start-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4, CSSOM

border-inline-start-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-inline-start-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4

border-inline-start-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1, CSS User Interface 4

border-inline-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-inline-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS Typed OM 1

border-left (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Typed OM 1

border-left-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Color 4, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4, CSSOM

Related terms: CSS value <color>

border-left-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-left-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4

Related terms: CSS value dashed, CSS value dashed, CSS value dotted, CSS value dotted, CSS value double, CSS value double, CSS value groove, CSS value groove, CSS value hidden, CSS value hidden, CSS value inset, CSS value inset, CSS value none, CSS value none, CSS value outset, CSS value outset, CSS value ridge, CSS value ridge, CSS value solid, CSS value solid

border-left-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Logical Properties 1, CSS Positioned Layout 3, CSS Transitions 2, CSS Typed OM 1, CSS User Interface 3, CSS User Interface 4, CSS Values 4, CSSOM View, Web Animations

Related terms: CSS value <length>, CSS value medium, CSS value medium, CSS value thick, CSS value thick, CSS value thin, CSS value thin

border-limit (CSS property) §

Defined in CSS Borders and Box Decorations 4

Related terms: CSS value all, CSS value bottom, CSS value corners, CSS value left, CSS value right, CSS value sides, CSS value top

border-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 4, CSS Fragmentation 3, CSS Fragmentation 4, CSS Logical Properties 1, CSS Masking 1, CSS Overflow 3, CSS Shapes 1, CSS Table 3, CSS Typed OM 1, CSS User Interface 3, CSS User Interface 4, CSS View Transitions 2

border-right (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Typed OM 1

border-right-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Color 4, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4, CSSOM

Related terms: CSS value <color>

border-right-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-right-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4

Related terms: CSS value dashed, CSS value dashed, CSS value dotted, CSS value dotted, CSS value double, CSS value double, CSS value groove, CSS value groove, CSS value hidden, CSS value hidden, CSS value inset, CSS value inset, CSS value none, CSS value none, CSS value outset, CSS value outset, CSS value ridge, CSS value ridge, CSS value solid, CSS value solid

border-right-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Logical Properties 1, CSS Positioned Layout 3, CSS Typed OM 1, CSS User Interface 3, CSS User Interface 4, CSS Values 4, Web Animations

Related terms: CSS value <length>, CSS value medium, CSS value medium, CSS value thick, CSS value thick, CSS value thin, CSS value thin

border-spacing (CSS property) §

Defined in CSS Table 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Box Alignment 3, CSS Typed OM 1, CSS Values 4, CSS Writing Modes 3, CSS Writing Modes 4

border-start-end-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS User Interface 4

border-start-start-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Logical Properties 1

Referenced in CSS User Interface 4

<border-style> (concept) §

Defined in CSS 2.1

<border-style> (CSS type) §

Defined in CSS 2.2

Related terms: CSS value dashed, CSS value dotted, CSS value double, CSS value groove, CSS value hidden, CSS value inset, CSS value none, CSS value outset, CSS value ridge, CSS value solid

border-style (CSS property) §

Defined in CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Backgrounds 4, CSS Borders and Box Decorations 4, Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Logical Properties 1, CSS Table 3, CSS Typed OM 1, CSS User Interface 3

Related terms: CSS value dashed, CSS value dashed, CSS value dotted, CSS value dotted, CSS value double, CSS value double, CSS value groove, CSS value groove, CSS value hidden, CSS value hidden, CSS value inset, CSS value inset, CSS value logical, CSS value none, CSS value none, CSS value outset, CSS value outset, CSS value ridge, CSS value ridge, CSS value solid, CSS value solid

border-top (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Typed OM 1, Web Animations

border-top-color (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Color 4, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4, CSSOM, Web Animations

Related terms: CSS value <color>

border-top-left-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS User Interface 4

border-top-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4

border-top-right-radius (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS User Interface 4

border-top-style (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Typed OM 1, CSS User Interface 4

Related terms: CSS value dashed, CSS value dashed, CSS value dotted, CSS value dotted, CSS value double, CSS value double, CSS value groove, CSS value groove, CSS value hidden, CSS value hidden, CSS value inset, CSS value inset, CSS value none, CSS value none, CSS value outset, CSS value outset, CSS value ridge, CSS value ridge, CSS value solid, CSS value solid

border-top-width (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Logical Properties 1, CSS Paged Media 3, CSS Positioned Layout 3, CSS Typed OM 1, CSS User Interface 3, CSS User Interface 4, CSS Values 4, CSSOM View, Web Animations

Related terms: CSS value <length>, CSS value medium, CSS value medium, CSS value thick, CSS value thick, CSS value thin, CSS value thin

<border-width> (CSS type) §

Defined in CSS 2.1 , CSS 2.2

Referenced in CSS Values 3, CSS Values 4

Related terms: CSS value <length>, CSS value medium, CSS value thick, CSS value thin

border-width (CSS property) §

Defined in CSS Backgrounds 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Backgrounds 4, CSS Borders and Box Decorations 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Logical Properties 1, CSS Table 3, CSS Typed OM 1, CSS User Interface 3, CSS User Interface 4, CSS Values 3, CSS Values 4, Web Animations

Related terms: CSS value <length>, CSS value logical, CSS value medium, CSS value medium, CSS value thick, CSS value thick, CSS value thin, CSS value thin

ResizeObserverEntry.borderBoxSize (WebIDL attribute) §

Defined in Resize Observer

bordercolor (markup attribute for table ) §

Defined in HTML

borderless (concept for display mode ) §

Defined in Manifest Incubations

both (CSS value for animation-fill-mode ) §

Defined in CSS Animations 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Animations 2

both (CSS value for clear ) §

Defined in CSS Page Floats , CSS 2.2

both (CSS value for scroll-snap-type ) §

Defined in CSS Scroll Snap 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

both (CSS value for wrap-flow ) §

Defined in CSS Exclusions 1

"both" (value for FillMode, PlaybackDirection enumeration WebIDL enumerations) §

Defined in Web Animations , Web Animations 2

"both" (value for MLRecurrentNetworkDirection WebIDL enumeration) §

Defined in Web Neural Network API

both-block (CSS value for clear ) §

Defined in CSS Page Floats

both-edges (CSS value for scrollbar-gutter ) §

Defined in CSS Overflow 3

both-inline (CSS value for clear ) §

Defined in CSS Page Floats

<bottom> (CSS type for clip ) §

Defined in CSS Masking 1

<bottom> (CSS type) §

Defined in CSS 2.1 , CSS 2.2

Related terms: CSS value auto

bottom (CSS value for border-limit ) §

Defined in CSS Borders and Box Decorations 4

"bottom" (value for CanvasTextBaseline WebIDL enumeration) §

Defined in HTML

bottom (CSS value for <position-area>, position-area property ) §

Defined in CSS Anchor Positioning

bottom (CSS value for anchor() ) §

Defined in CSS Anchor Positioning

bottom (CSS value for background-position ) §

Defined in CSS Backgrounds 3 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

bottom (CSS value for stuck descriptor of @container @rule ) §

Defined in CSS Conditional 5

bottom (CSS value for overflowing descriptor of @container @rule ) §

Defined in CSS Conditional 5

bottom (CSS value for baseline-shift, vertical-align property ) §

Defined in CSS Inline Layout 3

Referenced in CSS Box Alignment 3, CSS Ruby Annotation Layout 1

bottom (CSS value for float ) §

Defined in CSS Page Floats

bottom (CSS value for clear ) §

Defined in CSS Page Floats

bottom (CSS property) §

Defined in CSS Positioned Layout 3 , CSS 2.1 , CSS 2.2

Referenced in HTML, CSS Box Alignment 3, CSS Anchor Positioning, CSS Grid Layout 1, CSS Grid Layout 2, CSS Logical Properties 1, CSS Scroll Anchoring 1, CSS Typed OM 1, CSS Values 4, CSSOM

Related terms: CSS value auto, CSS value <length>, CSS value <percentage>

bottom (CSS value for transform-origin ) §

Defined in CSS Transforms 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

bottom (CSS value for perspective-origin ) §

Defined in CSS Transforms 2

bottom (CSS value for <position> ) §

Defined in CSS Values 5

bottom (CSS value for vertical-align ) §

Defined in CSS 2.2

bottom (CSS value for caption-side ) §

Defined in CSS 2.2

Referenced in CSS Writing Modes 3, CSS Writing Modes 4

CSSPositionTryDescriptors.bottom (WebIDL attribute) §

Defined in CSS Anchor Positioning

bottom (WebIDL attribute for DOMRectReadOnly DOMRect ) §

Defined in Geometry Interfaces 1

DOMRectReadOnly.bottom (WebIDL attribute) §

Defined in Geometry Interfaces 1

@bottom-center (CSS @rule) §

Defined in CSS Paged Media 3

@bottom-left (CSS @rule) §

Defined in CSS Paged Media 3

@bottom-left-corner (CSS @rule) §

Defined in CSS Paged Media 3

@bottom-right (CSS @rule) §

Defined in CSS Paged Media 3

@bottom-right-corner (CSS @rule) §

Defined in CSS Paged Media 3

bottommargin (markup attribute for body ) §

Defined in HTML

bound function exotic object (concept for ECMAScript ) §

Defined in ECMAScript

IDBKeyRange.bound(lower, upper, lowerOpen, upperOpen) (WebIDL operation) §

Defined in Indexed DB 3.0

boundary (event for SpeechSynthesisUtterance ) §

Defined in Web Speech API

boundary point (concept) §

Defined in DOM

Referenced in HTML, execCommand, URL Fragment Text Directives, CSS Custom Highlight API 1, Selection API

Related terms: concept after, concept before, concept equal, concept node, concept offset, concept position

"bounded-floor" (value for XRReferenceSpaceType WebIDL enumeration) §

Defined in WebXR Device API

Referenced in WebXR Layers API 1

BoundFunctionCreate (algorithm) §

Defined in ECMAScript

Referenced in ShadowRealm API

bounding box (concept) §

Defined in SVG 2

Referenced in Filter Effects 1

DetectedBarcode.boundingBox (WebIDL dictionary member) §

Defined in Accelerated Shape Detection in Images

DetectedFace.boundingBox (WebIDL dictionary member) §

Defined in Accelerated Shape Detection in Images

DetectedText.boundingBox (WebIDL dictionary member) §

Defined in Accelerated Text Detection in Images

FontMetrics.boundingBoxAscent (WebIDL attribute) §

Defined in Font Metrics API 1

FontMetrics.boundingBoxDescent (WebIDL attribute) §

Defined in Font Metrics API 1

FontMetrics.boundingBoxLeft (WebIDL attribute) §

Defined in Font Metrics API 1

FontMetrics.boundingBoxRight (WebIDL attribute) §

Defined in Font Metrics API 1

IntersectionObserverEntry.boundingClientRect (WebIDL attribute) §

Defined in Intersection Observer

IntersectionObserverEntryInit.boundingClientRect (WebIDL dictionary member) §

Defined in Intersection Observer

VirtualKeyboard.boundingRect (WebIDL attribute) §

Defined in VirtualKeyboard API

XRBoundedReferenceSpace.boundsGeometry (WebIDL attribute) §

Defined in WebXR Device API

FragmentResult.[[box]] (internal slot) §

Defined in CSS Layout API 1

LayoutChild.[[box]] (internal slot) §

Defined in CSS Layout API 1

<box> (CSS type) §

Defined in CSS Box Model 3 , CSS Box Model 4

Related terms: CSS value border-box, CSS value content-box, CSS value fill-box, CSS value margin-box, CSS value padding-box, CSS value stroke-box, CSS value view-box

box (concept for CSS ) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Positioned Layout 4, Layout Instability, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 4, CSS Cascading 5, CSS Inline Layout 3, CSS Layout API 1, CSS Spatial Navigation 1, CSS Painting API 1, CSS Positioned Layout 3, CSS Scroll Anchoring 1, CSS Sizing 3, CSS Text Decoration 3, CSS Text Decoration 4, CSSOM View, Paint Timing, Scroll-driven Animations

BoxQuadOptions.box (WebIDL dictionary member) §

Defined in CSSOM View

ResizeObserverOptions.box (WebIDL dictionary member) §

Defined in Resize Observer

box alignment properties (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Grid Layout 1, CSS Grid Layout 2, CSS Positioned Layout 3

box edge (concept for box ) §

Defined in CSS Box Model 3 , CSS Box Model 4

Referenced in CSS Display 4, CSS Box Alignment 3, CSS Inline Layout 3

box fragment (concept) §

Defined in CSS Fragmentation 3 , CSS Fragmentation 4

Referenced in CSS Display 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Anchor Positioning, CSS Backgrounds 3, CSS Box Model 4, CSS Cascading 5, CSS Inline Layout 3, CSS Spatial Navigation 1, CSS Positioned Layout 3, CSS Pseudo-Elements 4, CSS Text Decoration 4, CSS View Transitions 1, CSS Writing Modes 4, CSSOM View

box tree (concept for CSS ) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Positioned Layout 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 4, CSS Inline Layout 3, CSS Layout API 1, CSSOM View, Selectors 4

box-decoration-break (CSS property) §

Defined in CSS Fragmentation 3 , CSS Fragmentation 4

Referenced in CSS Borders and Box Decorations 4, CSS Snapshot 2022, CSS Snapshot 2023, CSS Backgrounds 3, CSS Box Model 4, CSS Text Decoration 4, CSS Typed OM 1, CSS Writing Modes 3, CSS Writing Modes 4

Related terms: CSS value clone, CSS value slice

box-shadow (CSS property) §

Defined in CSS Borders and Box Decorations 4 , CSS Backgrounds 3

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Fragmentation 3, CSS Fragmentation 4, CSS Color Adjustment 1, CSS Conditional 3, CSS Inline Layout 3, CSS Overflow 3, CSS Pseudo-Elements 4, CSS Text Decoration 3, CSS Text Decoration 4, CSS Transitions, CSS Values 3, CSS Values 4, CSS Writing Modes 3, CSS Writing Modes 4, CSSOM, Filter Effects 1, Web Animations

Related terms: concept blur radius, concept horizontal offset, concept inner box-shadow, concept outer box-shadow, concept spread distance, concept vertical offset, CSS value none

box-shadow-blur (CSS property) §

Defined in CSS Borders and Box Decorations 4

box-shadow-color (CSS property) §

Defined in CSS Borders and Box Decorations 4

box-shadow-offset (CSS property) §

Defined in CSS Borders and Box Decorations 4

Related terms: CSS value 1st <length>, CSS value 2nd <length>, CSS value horizontal offset, CSS value none, CSS value vertical offset

box-shadow-position (CSS property) §

Defined in CSS Borders and Box Decorations 4

Related terms: CSS value inner box-shadow, CSS value inset, CSS value outer box-shadow, CSS value outset

box-shadow-spread (CSS property) §

Defined in CSS Borders and Box Decorations 4

box-sizing (CSS property) §

Defined in CSS Sizing 3 , CSS User Interface 3

Referenced in Compatibility, CSS Display 4, Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Flexbox 1, CSS Inline Layout 3, CSS Sizing 4, CSS Table 3, CSS Typed OM 1, CSS User Interface 4, CSS Values 4

Related terms: CSS value border-box, CSS value content-box

box-snap (CSS property) §

Defined in CSS Line Grid 1

Referenced in CSS Typed OM 1

Related terms: CSS value baseline, CSS value block-end, CSS value block-start, CSS value center, CSS value last-baseline, CSS value none

box::border (concept) §

Defined in CSS 2.1

Referenced in Resize Observer

box::content (concept) §

Defined in CSS 2.1

box::content height (concept) §

Defined in CSS 2.1

box::content width (concept) §

Defined in CSS 2.1

box::margin (concept) §

Defined in CSS 2.1

box::padding (concept) §

Defined in CSS 2.1

BoxQuadOptions (WebIDL dictionary) §

Defined in CSSOM View

Related terms: BoxQuadOptions.box, BoxQuadOptions.relativeTo

see also WebIDLPedia

br (markup element) §

Defined in HTML

Referenced in CSS Display 4, execCommand, CSS Display 3, HTML Accessibility API Mappings 1.0, ARIA in HTML, Input Events 2

Related terms: markup attribute clear

braille (CSS value for @media ) §

Defined in CSS 2.2 , Media Queries 4 , Media Queries 5

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

brand (concept for user agent ) §

Defined in User-Agent Client Hints

NavigatorUABrandVersion.brand (WebIDL dictionary member) §

Defined in User-Agent Client Hints

IdentityProviderAPIConfig.branding (WebIDL dictionary member) §

Defined in Federated Credential Management API

NavigatorUAData.brands (WebIDL attribute) §

Defined in User-Agent Client Hints

UADataValues.brands (WebIDL dictionary member) §

Defined in User-Agent Client Hints

UALowEntropyJSON.brands (WebIDL dictionary member) §

Defined in User-Agent Client Hints

XRWorldMeshFeature.breadth (WebIDL dictionary member) §

Defined in WebXR Meshing API 1

Related terms: XRWorldMeshFeature/breadth.breadth

breadth (WebIDL attribute for breadth dictionary member of XRWorldMeshFeature dictionary ) §

Defined in WebXR Meshing API 1

break (concept for iteration ) §

Defined in Infra

Referenced in DOM, Encoding, Fetch, Fullscreen API, HTML, MIME Sniffing, Private Aggregation API, Source Map, URL, URL Pattern, WebDriver BiDi, Web IDL, Attribution Reporting, Cookie Store API, Fenced Frame, Prefetch, Prerendering Revamped, URL Fragment Text Directives, Protected Audience, Writing Assistance APIs, Clear Site Data, CSSOM, Fetch Metadata, Device Orientation and Motion, Payment Method Manifest, Publication Manifest, Service Workers, Web Neural Network API, WebTransport

SerialOutputSignals.break (WebIDL dictionary member) §

Defined in Web Serial API

break completion (concept for ECMAScript ) §

Defined in ECMAScript

break-after (CSS property) §

Defined in CSS Fragmentation 3 , CSS Fragmentation 4

Referenced in CSS Multicol 2, CSS Snapshot 2022, CSS Snapshot 2023, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Overflow 4, CSS Paged Media 3, CSS Regions 1, CSS Table 3, CSS Typed OM 1

Related terms: CSS value all, CSS value always, CSS value auto, CSS value avoid, CSS value avoid-column, CSS value avoid-page, CSS value avoid-region, CSS value column, CSS value left, CSS value page, CSS value recto, CSS value region, CSS value right, CSS value verso

break-all (CSS value for word-break ) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

break-before (CSS property) §

Defined in CSS Fragmentation 3 , CSS Fragmentation 4

Referenced in CSS Multicol 2, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Flexbox 1, CSS Grid Layout 1, CSS Grid Layout 2, CSS Overflow 4, CSS Paged Media 3, CSS Regions 1, CSS Table 3, CSS Typed OM 1

Related terms: CSS value all, CSS value always, CSS value auto, CSS value avoid, CSS value avoid-column, CSS value avoid-page, CSS value avoid-region, CSS value column, CSS value left, CSS value page, CSS value recto, CSS value region, CSS value right, CSS value verso

break-inside (CSS property) §

Defined in CSS Fragmentation 3 , CSS Fragmentation 4

Referenced in CSS Multicol 2, CSS Snapshot 2022, CSS Snapshot 2023, CSS Flexbox 1, CSS Layout API 1, CSS Overflow 4, CSS Paged Media 3, CSS Regions 1, CSS Table 3, CSS Typed OM 1

Related terms: CSS value auto, CSS value avoid, CSS value avoid-column, CSS value avoid-page, CSS value avoid-region

break-spaces (CSS value for white-space ) §

Defined in CSS Text 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Text 4

break-spaces (CSS value for white-space-collapse ) §

Defined in CSS Text 4

break-word (CSS value for word-break ) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

break-word (CSS value for overflow-wrap ) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, WebVTT: The Web Video Text Tracks Format

MemoryMeasurement.breakdown (WebIDL dictionary member) §

Defined in Measure Memory API

FragmentResultOptions.breakToken (WebIDL dictionary member) §

Defined in CSS Layout API 1

LayoutFragment.breakToken (WebIDL attribute) §

Defined in CSS Layout API 1

BreakToken (WebIDL interface) §

Defined in CSS Layout API 1

Related terms: BreakToken.childBreakTokens, BreakToken.data

see also WebIDLPedia

BreakTokenOptions (WebIDL dictionary) §

Defined in CSS Layout API 1

Related terms: BreakTokenOptions.childBreakTokens, BreakTokenOptions.data

see also WebIDLPedia

ChildBreakToken.breakType (WebIDL attribute) §

Defined in CSS Layout API 1

BreakType (WebIDL enumeration) §

Defined in CSS Layout API 1

Related terms: value column, value line, value none, value page, value region

see also WebIDLPedia

MediaTrackCapabilities.brightness (WebIDL dictionary member) §

Defined in MediaStream Image Capture

MediaTrackConstraintSet.brightness (WebIDL dictionary member) §

Defined in MediaStream Image Capture

MediaTrackSettings.brightness (WebIDL dictionary member) §

Defined in MediaStream Image Capture

MediaTrackSupportedConstraints.brightness (WebIDL dictionary member) §

Defined in MediaStream Image Capture

brightness() (CSS function for filter ) §

Defined in Filter Effects 1

BluetoothCharacteristicProperties.broadcast (WebIDL attribute) §

Defined in Web Bluetooth

BroadcastChannel (WebIDL interface) §

Defined in HTML

Referenced in Extending Storage Access API to non-cookie storage, High Resolution Time

Related terms: BroadcastChannel.name, BroadcastChannel.onmessage, BroadcastChannel.onmessageerror, event message, event messageerror, BroadcastChannel.close(), BroadcastChannel.postMessage(message)

see also WebIDLPedia

StorageAccessTypes.BroadcastChannel (WebIDL dictionary member) §

Defined in Extending Storage Access API to non-cookie storage

broadcastchannel-message (concept) §

Defined in HTML

StorageAccessHandle.BroadcastChannel(name) (WebIDL operation) §

Defined in Extending Storage Access API to non-cookie storage

brown (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

brown (CSS value for <color>, <named-color> type ) §

Defined in CSS Color 4

browser (concept for modules ) §

Defined in WebDriver BiDi

browser (concept for display mode ) §

Defined in Web Application Manifest

Referenced in Media Queries 5

browser (CSS value for display-mode descriptor of @media @rule ) §

Defined in Media Queries 5

browser (concept for display surface ) §

Defined in Screen Capture

"browser" (value for DisplayCaptureSurfaceType WebIDL enumeration) §

Defined in Screen Capture

browser fingerprinting (concept) §

Defined in Mitigating Browser Fingerprinting in Web Specifications

browser UI (concept for user navigation involvement ) §

Defined in HTML

browser.close (concept for [[commands]] ) §

Defined in WebDriver BiDi

browser.createUserContext (concept for [[commands]] ) §

Defined in WebDriver BiDi

browser.getClientWindows (concept for [[commands]] ) §

Defined in WebDriver BiDi

browser.getUserContexts (concept for [[commands]] ) §

Defined in WebDriver BiDi

browser.removeUserContext (concept for [[commands]] ) §

Defined in WebDriver BiDi

browser.setClientWindowState (concept for [[commands]] ) §

Defined in WebDriver BiDi

BrowserCaptureMediaStreamTrack (WebIDL interface) §

Defined in Region Capture

Related terms: BrowserCaptureMediaStreamTrack.clone(), BrowserCaptureMediaStreamTrack.cropTo(), BrowserCaptureMediaStreamTrack.restrictTo()

see also WebIDLPedia

browsing context (concept for Window ) §

Defined in HTML

Referenced in Iframe credentialless, Client Hints Infrastructure, Fenced Frame, File System Access, Shared Storage API, Protected Audience, CSSOM View, Long Tasks API, Media Session, Paint Timing, Permissions

browsing context (concept) §

Defined in HTML

Referenced in DOM, Filter Effects 2, Notifications API, Navigational-Tracking Mitigations, The Capture-Handle Actions Mechanism, Web NFC API, Web Bluetooth, Background Sync, Capability Delegation, Fenced Frame, Shared Storage API, Web Application Manifest, Clear Site Data, Compute Pressure 1, Filter Effects 1, Generic Sensor API, Indexed DB 3.0, Region Capture, Viewport Capture, Media Queries 5, Media Session, Picture-in-Picture, Pointer Lock 2.0, Presentation API, Remote Playback API, Screen Capture, Screen Orientation, Service Workers, Web Locks API, WebDriver

Related terms: concept top-level traversable

browsing context (concept for Document ) §

Defined in HTML

Referenced in DOM, The Storage Access API, Fenced Frame, Prefetch, Prerendering Revamped, URL Fragment Text Directives, Shared Storage API, Largest Contentful Paint, Media Session, Mixed Content, Paint Timing, Pointer Lock 2.0, Referrer Policy, Screen Orientation, Selection API

browsing-context connected (concept) §

Defined in HTML

Referenced in Portals

browsingContext (concept for modules ) §

Defined in WebDriver BiDi

browsingContext.activate (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.captureScreenshot (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.close (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.create (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.getTree (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.handleUserPrompt (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.locateNodes (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.navigate (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.print (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.reload (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.setViewport (concept for [[commands]] ) §

Defined in WebDriver BiDi

browsingContext.traverseHistory (concept for [[commands]] ) §

Defined in WebDriver BiDi

BrowsingTopic (WebIDL dictionary) §

Defined in Topics API

Related terms: BrowsingTopic.configVersion, BrowsingTopic.modelVersion, BrowsingTopic.taxonomyVersion, BrowsingTopic.topic, BrowsingTopic.version

see also WebIDLPedia

browsingtopics (markup attribute for iframe ) §

Defined in Topics API

HTMLIFrameElement.browsingTopics (WebIDL attribute) §

Defined in Topics API

RequestInit.browsingTopics (WebIDL dictionary member) §

Defined in Topics API

Document.browsingTopics(options) (WebIDL operation) §

Defined in Topics API

BrowsingTopicsOptions (WebIDL dictionary) §

Defined in Topics API

Related terms: BrowsingTopicsOptions.skipObservation

see also WebIDLPedia

"bt2020" (value for VideoColorPrimaries WebIDL enumeration) §

Defined in WebCodecs

"bt2020-ncl" (value for VideoMatrixCoefficients WebIDL enumeration) §

Defined in WebCodecs

"bt470bg" (value for VideoColorPrimaries WebIDL enumeration) §

Defined in WebCodecs

"bt470bg" (value for VideoMatrixCoefficients WebIDL enumeration) §

Defined in WebCodecs

"bt709" (value for VideoColorPrimaries WebIDL enumeration) §

Defined in WebCodecs

"bt709" (value for VideoTransferCharacteristics WebIDL enumeration) §

Defined in WebCodecs

"bt709" (value for VideoMatrixCoefficients WebIDL enumeration) §

Defined in WebCodecs

WindowOrWorkerGlobalScope.btoa(data) (WebIDL operation) §

Defined in HTML

MLGemmOptions.bTranspose (WebIDL dictionary member) §

Defined in Web Neural Network API

Event.bubbles (WebIDL attribute) §

Defined in DOM

Referenced in Fullscreen API, HTML, Captured Mouse Events, execCommand, Web Bluetooth, Cookie Store API, Fenced Frame, Web Serial API, Content Security Policy 3, Indexed DB 3.0, Picture-in-Picture, Pointer Events, UI Events, XMLHttpRequest

EventInit.bubbles (WebIDL dictionary member) §

Defined in DOM

Event.BUBBLING_PHASE (WebIDL constant) §

Defined in DOM

Referenced in UI Events

AuctionReportBuyersConfig.bucket (WebIDL dictionary member) §

Defined in Protected Audience

PAExtendedHistogramContribution.bucket (WebIDL dictionary member) §

Defined in Protected Audience

PAHistogramContribution.bucket (WebIDL dictionary member) §

Defined in Private Aggregation API

Referenced in Protected Audience

RealTimeContribution.bucket (WebIDL dictionary member) §

Defined in Protected Audience

bucket file system (concept) §

Defined in File System

Referenced in File System Access

%TypedArray%.buffer (WebIDL attribute) §

Defined in ECMAScript

AudioBufferSourceNode.buffer (WebIDL attribute) §

AudioBufferSourceNode.buffer (WebIDL attribute) §

Defined in Web Audio API , Web Audio API 1.1

AudioBufferSourceOptions.buffer (WebIDL dictionary member) §

AudioBufferSourceOptions.buffer (WebIDL dictionary member) §

Defined in Web Audio API , Web Audio API 1.1

ConvolverNode.buffer (WebIDL attribute) §

ConvolverNode.buffer (WebIDL attribute) §

Defined in Web Audio API , Web Audio API 1.1

ConvolverOptions.buffer (WebIDL dictionary member) §

ConvolverOptions.buffer (WebIDL dictionary member) §

Defined in Web Audio API , Web Audio API 1.1

DataView.buffer (WebIDL attribute) §

Defined in ECMAScript

GPUBindGroupLayoutEntry.buffer (WebIDL dictionary member) §

Defined in WebGPU

Referenced in WebGPU Shading Language

GPUBufferBinding.buffer (WebIDL dictionary member) §

Defined in WebGPU

GPUTexelCopyBufferInfo.buffer (WebIDL dictionary member) §

Defined in WebGPU

Memory.buffer (WebIDL attribute) §

Memory.buffer (WebIDL attribute) §

Memory.buffer (WebIDL attribute) §

Memory.buffer (WebIDL attribute) §

Memory.buffer (WebIDL attribute) §

Memory.buffer (WebIDL attribute) §

Memory.buffer (WebIDL attribute) §

Memory.buffer (WebIDL attribute) §

Defined in WebAssembly JavaScript Interface: Content Security Policy , WebAssembly JavaScript Interface: ESM Integration , WebAssembly JavaScript Interface: Exception Handling , WebAssembly JavaScript Interface: Promise Integration , WebAssembly JavaScript Interface: JS String Builtins , WebAssembly JavaScript Interface: Type Reflection , WebAssembly JavaScript Interface: Threading , WebAssembly JavaScript Interface

Referenced in Streams, Web IDL

ConvolverNode.buffer attribute (WebIDL attribute) §

ConvolverNode.buffer attribute (WebIDL attribute) §

Defined in Web Audio API , Web Audio API 1.1

AudioBufferSourceNode.[[buffer set]] (internal slot) §

AudioBufferSourceNode.[[buffer set]] (internal slot) §

Defined in Web Audio API , Web Audio API 1.1

buffer source types (concept) §

Defined in Web IDL

Referenced in Indexed DB 3.0, Web Authentication

buffer types (concept) §

Defined in Web IDL

buffer view types (concept) §

Defined in Web IDL

HTMLMediaElement.buffered (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™, Media Capture and Streams, Open Screen Protocol

PerformanceObserverInit.buffered (WebIDL dictionary member) §

Defined in Performance Timeline

Referenced in Event Timing API

ReportingObserverOptions.buffered (WebIDL dictionary member) §

Defined in Reporting API

SourceBuffer.buffered (WebIDL attribute) §

Defined in Media Source Extensions™

RTCDataChannel.bufferedAmount (WebIDL attribute) §

Defined in WebRTC 1.0

WebSocket.bufferedAmount (WebIDL attribute) §

Defined in WebSockets

Referenced in Streams

bufferedamountlow (event for RTCDataChannel ) §

Defined in WebRTC 1.0

RTCDataChannel.bufferedAmountLowThreshold (WebIDL attribute) §

Defined in WebRTC 1.0

bufferedchange (event) §

Defined in Media Source Extensions™

BufferedChangeEvent (WebIDL interface) §

Defined in Media Source Extensions™

Related terms: BufferedChangeEvent.addedRanges, BufferedChangeEvent.removedRanges, WebIDL constructor constructor()

see also WebIDLPedia

BufferedChangeEventInit (WebIDL dictionary) §

Defined in Media Source Extensions™

Related terms: BufferedChangeEventInit.addedRanges, BufferedChangeEventInit.removedRanges

see also WebIDLPedia

:buffering (CSS selector) §

Defined in Selectors 4

GPUVertexState.buffers (WebIDL dictionary member) §

Defined in WebGPU

ScriptProcessorNode.bufferSize (WebIDL attribute) §

ScriptProcessorNode.bufferSize (WebIDL attribute) §

Defined in Web Audio API , Web Audio API 1.1

SerialOptions.bufferSize (WebIDL dictionary member) §

Defined in Web Serial API

BufferSource (WebIDL type alias) §

Defined in Web IDL

Referenced in Compression, Fetch, File System, Web NFC API, WebAssembly JavaScript Interface: Content Security Policy, WebAssembly JavaScript Interface: ESM Integration, WebAssembly JavaScript Interface: Exception Handling, WebAssembly JavaScript Interface: Promise Integration, WebAssembly JavaScript Interface: JS String Builtins, WebAssembly JavaScript Interface: Type Reflection, Web Bluetooth, WebSockets, Direct Sockets API, Web Serial API, Web Smart Card API, Secure Curves in the Web Cryptography API, WebHID API, WebUSB API, CSS Font Loading 3, Encrypted Media Extensions, File API, Media Source Extensions™, Push API, Secure Payment Confirmation, WebAssembly JavaScript Interface, Web Authentication, WebCodecs, Web Cryptography API, WebRTC Encoded Transform, WebTransport

Related terms: concept byte length, concept detached, concept transferable, concept underlying buffer

see also WebIDLPedia

build a URL pattern from a Web IDL value (concept) §

Defined in URL Pattern

Referenced in Service Workers

build a URL pattern from an HTTP structured field value (concept) §

Defined in URL Pattern

build a URL pattern from an Infra value (concept) §

Defined in URL Pattern

Referenced in Manifest Incubations, Speculation Rules

build a URLPattern object from a Web IDL value (concept) §

Defined in URL Pattern

MLGraphBuilder.build(outputs) (WebIDL operation) §

Defined in Web Neural Network API

MLOperand.[[builder]] (internal slot) §

Defined in Web Neural Network API

BuiltinCallOrConstruct (algorithm) §

Defined in ECMAScript

WebAssemblyCompileOptions.builtins (WebIDL dictionary member) §

Defined in WebAssembly JavaScript Interface: JS String Builtins

"bulk" (value for USBEndpointType WebIDL enumeration) §

Defined in WebUSB API

bullets (CSS value for speak-as descriptor of @counter-style @rule ) §

Defined in CSS Counter Styles 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

RTCConfiguration.bundlePolicy (WebIDL dictionary member) §

Defined in WebRTC 1.0

burlywood (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

burlywood (CSS value for <color>, <named-color> type ) §

Defined in CSS Color 4

butt (CSS value for stroke-linecap ) §

Defined in CSS Fill and Stroke 3

button (value for type attribute of input element ) §

Defined in HTML

button (markup element) §

Defined in HTML

Referenced in CSS Display 4, CSS Overflow 5, Fenced Frame, CSS Color Adjustment 1, CSS Display 3, CSS Sizing 3, HTML Accessibility API Mappings 1.0, ARIA in HTML, Selectors 4, WAI-ARIA, WAI-ARIA

Related terms: concept form owner, markup attribute action, markup attribute autocomplete, markup attribute disabled, markup attribute enctype, markup attribute form, markup attribute formaction, markup attribute formenctype, markup attribute formmethod, markup attribute formnovalidate, markup attribute formtarget, markup attribute method, markup attribute name, markup attribute novalidate, markup attribute target, markup attribute type, markup attribute value

button (value for type attribute of button element ) §

Defined in HTML

button (CSS value for appearance ) §

Defined in CSS User Interface 4

Button (state of markup element for input ) §

Defined in HTML

MouseEvent.button (WebIDL attribute) §

Defined in UI Events

MouseEventInit.button (WebIDL dictionary member) §

Defined in UI Events

ButtonBorder (CSS value for <color>, <system-color> type ) §

Defined in CSS Color 4

ButtonFace (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

ButtonFace (CSS value for <color>, <system-color> type ) §

Defined in CSS Color 4

ButtonHighlight (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

ButtonHighlight (CSS value for <color>, <deprecated-color> type ) §

Defined in CSS Color 4

Gamepad.buttons (WebIDL attribute) §

Defined in Gamepad

MouseEvent.buttons (WebIDL attribute) §

Defined in UI Events

MouseEventInit.buttons (WebIDL dictionary member) §

Defined in UI Events

ButtonShadow (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

ButtonShadow (CSS value for <color>, <deprecated-color> type ) §

Defined in CSS Color 4

ButtonText (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

ButtonText (CSS value for <color>, <system-color> type ) §

Defined in CSS Color 4

"buyer" (value for FenceReportingDestination WebIDL enumeration) §

Defined in Fenced Frame

Referenced in Protected Audience

AuctionAd.buyerAndSellerReportingId (WebIDL dictionary member) §

Defined in Protected Audience

ReportingBrowserSignals.buyerAndSellerReportingId (WebIDL dictionary member) §

Defined in Protected Audience

AuctionAd.buyerReportingId (WebIDL dictionary member) §

Defined in Protected Audience

ReportWinBrowserSignals.buyerReportingId (WebIDL dictionary member) §

Defined in Protected Audience

by (CSS value for <by-to>, shape() function ) §

Defined in CSS Shapes 2

by computed value (concept) §

Defined in Web Animations

Referenced in CSS Grid Layout 1, CSS Grid Layout 2, CSS Properties and Values API 1

<by-to> (CSS type for shape() ) §

Defined in CSS Shapes 2

Related terms: CSS value by, CSS value to

"byob" (value for ReadableStreamReaderMode WebIDL enumeration) §

Defined in Streams

BYOB reader (concept) §

Defined in Streams

Referenced in WebTransport

ReadableByteStreamController.byobRequest (WebIDL attribute) §

Defined in Streams

byte (concept) §

Defined in Infra

Referenced in Encoding, MIME Sniffing, Source Map, URL, Web NFC API, Cookie Store API, Protected Audience, File API, Indexed DB 3.0

Related terms: concept value

byte (WebIDL interface) §

Defined in Web IDL

Referenced in Web Bluetooth, WebHID API, Indexed DB 3.0

see also WebIDLPedia

EncodedAudioChunk.[[byte length]] (internal slot) §

Defined in WebCodecs

EncodedVideoChunk.[[byte length]] (internal slot) §

Defined in WebCodecs

byte length (concept for BufferSource ) §

Defined in Web IDL

Referenced in Encoding, File System, Streams, Direct Sockets API, Web Serial API, Service Workers, Web Audio API, Web Audio API 1.1, Web Neural Network API, WebTransport

byte less than (concept) §

Defined in Infra

Referenced in Fetch, Indexed DB 3.0, XMLHttpRequest

byte sequence (concept) §

Defined in Infra

Referenced in Encoding, Fetch, File System, HTML, MIME Sniffing, Private Aggregation API, Streams, Source Map, URL, Web NFC API, WebDriver BiDi, WebAssembly JavaScript Interface: ESM Integration, Web Bluetooth, Web IDL, Attribution Reporting, Background Fetch, Cookie Store API, Direct Sockets API, File System Access, User Agent Interaction with Related Website Sets, Local Font Access, Speculation Rules, Web Serial API, Shared Storage API, Private State Token API, Protected Audience, WebHID API, Loading Signed Exchanges, Web Application Manifest, Content Security Policy 3, File API, Indexed DB 3.0, MiniApp Packaging, Payment Method Manifest, Push API, Reporting API, Service Workers, Verifiable Credential Data Integrity 1.0, Verifiable Credentials Data Model v2.0, Web Authentication, WebCodecs, Web Cryptography API, WebTransport, XMLHttpRequest

Related terms: concept as a body, concept length, concept percent-decode, concept prefix, concept starts with

Byte Stream Formats (concept) §

Defined in Media Source Extensions™

byte value (concept for ECMAScript ) §

Defined in ECMAScript

byte-case-insensitive (concept) §

Defined in Infra

Referenced in Fetch, WebDriver BiDi, Background Fetch, Protected Audience, Loading Signed Exchanges, WebAssembly Web API

byte-lowercase (concept) §

Defined in Infra

Referenced in Fetch, WebDriver BiDi, Client Hints Infrastructure, Scripting Policy, User Preference Media Features Client Hints Headers

byte-uppercase (concept) §

Defined in Infra

Referenced in Fetch, XMLHttpRequest

%TypedArray%.byteLength (WebIDL attribute) §

Defined in ECMAScript

ArrayBuffer.byteLength (WebIDL attribute) §

Defined in ECMAScript

DataView.byteLength (WebIDL attribute) §

Defined in ECMAScript

EncodedAudioChunk.byteLength (WebIDL attribute) §

Defined in WebCodecs

EncodedVideoChunk.byteLength (WebIDL attribute) §

Defined in WebCodecs

SharedArrayBuffer.byteLength (WebIDL attribute) §

Defined in ECMAScript

ByteLengthQueuingStrategy (WebIDL interface) §

Defined in Streams

Related terms: ByteLengthQueuingStrategy.highWaterMark, ByteLengthQueuingStrategy.size, new ByteLengthQueuingStrategy(init)

see also WebIDLPedia

new ByteLengthQueuingStrategy(init) (WebIDL constructor) §

Defined in Streams

ByteListBitwiseOp (algorithm) §

Defined in ECMAScript

ByteListEqual (algorithm) §

Defined in ECMAScript

%TypedArray%.byteOffset (WebIDL attribute) §

Defined in ECMAScript

DataView.byteOffset (WebIDL attribute) §

Defined in ECMAScript

"bytes" (value for ReadableStreamType WebIDL enumeration) §

Defined in Streams

MemoryBreakdownEntry.bytes (WebIDL dictionary member) §

Defined in Measure Memory API

MemoryMeasurement.bytes (WebIDL dictionary member) §

Defined in Measure Memory API

TypedArray.BYTES_PER_ELEMENT (WebIDL attribute) §

Defined in ECMAScript

Blob.bytes() (WebIDL operation) §

Defined in File API

Body.bytes() (WebIDL operation) §

Defined in Fetch

PushMessageData.bytes() (WebIDL operation) §

Defined in Push API

WebTransportSendStreamStats.bytesAcknowledged (WebIDL dictionary member) §

Defined in WebTransport

RTCIceCandidatePairStats.bytesDiscardedOnSend (WebIDL dictionary member) §

Defined in WebRTC Statistics

byteSize (algorithm for GPUVertexFormat ) §

Defined in WebGPU

WebTransportConnectionStats.bytesLost (WebIDL dictionary member) §

Defined in WebTransport

GPUTexelCopyBufferLayout.bytesPerRow (WebIDL dictionary member) §

Defined in WebGPU

WebTransportReceiveStreamStats.bytesRead (WebIDL dictionary member) §

Defined in WebTransport

RTCDataChannelStats.bytesReceived (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCIceCandidatePairStats.bytesReceived (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCInboundRtpStreamStats.bytesReceived (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCTransportStats.bytesReceived (WebIDL dictionary member) §

Defined in WebRTC Statistics

WebTransportConnectionStats.bytesReceived (WebIDL dictionary member) §

Defined in WebTransport

WebTransportReceiveStreamStats.bytesReceived (WebIDL dictionary member) §

Defined in WebTransport

RTCDataChannelStats.bytesSent (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCIceCandidatePairStats.bytesSent (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCSentRtpStreamStats.bytesSent (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCTransportStats.bytesSent (WebIDL dictionary member) §

Defined in WebRTC Statistics

WebTransportConnectionStats.bytesSent (WebIDL dictionary member) §

Defined in WebTransport

WebTransportSendStreamStats.bytesSent (WebIDL dictionary member) §

Defined in WebTransport

ByteString (WebIDL interface) §

Defined in Web IDL

Referenced in Fetch, Resource Timing, Service Workers, XMLHttpRequest

see also WebIDLPedia

USBIsochronousOutTransferPacket.bytesWritten (WebIDL attribute) §

Defined in WebUSB API

USBOutTransferResult.bytesWritten (WebIDL attribute) §

Defined in WebUSB API

WebTransportSendStreamStats.bytesWritten (WebIDL dictionary member) §

Defined in WebTransport