Webdex

Color key: WebIDL CSS Markup HTTP

l (CSS value for hsl() ) §

Defined in CSS Color 5

l (CSS value for lab() ) §

Defined in CSS Color 5

l (CSS value for oklab() ) §

Defined in CSS Color 5

l (CSS value for lch() ) §

Defined in CSS Color 5

l (CSS value for oklch() ) §

Defined in CSS Color 5

CSSHSL.l (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSLab.l (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSLCH.l (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSOKLab.l (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSOKLCH.l (WebIDL attribute) §

Defined in CSS Typed OM 1

L1T1 (concept) §

Defined in SVC

L1T2 (concept) §

Defined in SVC

L1T3 (concept) §

Defined in SVC

MLGraphBuilder.l2Pool2d(input, options) (WebIDL operation) §

Defined in Web Neural Network API

L2T1 (concept) §

Defined in SVC

L2T1h (concept) §

Defined in SVC

L2T2 (concept) §

Defined in SVC

L2T2_KEY (concept) §

Defined in SVC

L2T2_KEY_SHIFT (concept) §

Defined in SVC

L2T2h (concept) §

Defined in SVC

L2T3 (concept) §

Defined in SVC

L2T3_KEY (concept) §

Defined in SVC

L2T3_KEY_SHIFT (concept) §

Defined in SVC

L2T3h (concept) §

Defined in SVC

L3T1 (concept) §

Defined in SVC

L3T1_KEY (concept) §

Defined in SVC

L3T1h (concept) §

Defined in SVC

L3T2 (concept) §

Defined in SVC

L3T2_KEY (concept) §

Defined in SVC

L3T2_KEY_SHIFT (concept) §

Defined in SVC

L3T2h (concept) §

Defined in SVC

L3T3 (concept) §

Defined in SVC

L3T3_KEY (concept) §

Defined in SVC

L3T3_KEY_SHIFT (concept) §

Defined in SVC

L3T3h (concept) §

Defined in SVC

Lab (CSS value for lab() ) §

Defined in CSS Color 4

Referenced in CSS Color 5

lab() (CSS function) §

Defined in CSS Color 4 , CSS Color 5

Referenced in CSS Typed OM 1

Related terms: CSS value a, CSS value alpha, CSS value b, CSS value l, CSS value Lab

label (concept for encoding ) §

Defined in Encoding

Referenced in HTML, Web NFC API

label (markup attribute for track ) §

Defined in HTML

Referenced in HTML Accessibility API Mappings 1.0

label (markup element) §

Defined in HTML

Referenced in HTML Accessibility API Mappings 1.0, ARIA in HTML, Selectors 4, WAI-ARIA, WAI-ARIA

Related terms: markup attribute for

label (markup attribute for optgroup ) §

Defined in HTML

Referenced in HTML Accessibility API Mappings 1.0

label (markup attribute for option ) §

Defined in HTML

Referenced in HTML Accessibility API Mappings 1.0

label (markup attribute for menu ) §

Defined in HTML

label (concept for prefetch record ) §

Defined in Prefetch

label (concept) §

Defined in Web App Manifest - Application Information

AudioTrack.label (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™

GPUObjectBase.label (WebIDL attribute) §

Defined in WebGPU

GPUObjectDescriptorBase.label (WebIDL dictionary member) §

Defined in WebGPU

HTMLOptGroupElement.label (WebIDL attribute) §

Defined in HTML

HTMLOptionElement.label (WebIDL attribute) §

Defined in HTML

HTMLTrackElement.label (WebIDL attribute) §

Defined in HTML

ImageResource.label (WebIDL dictionary member) §

Defined in Image Resource

MediaDeviceInfo.label (WebIDL attribute) §

Defined in Media Capture and Streams

MediaKeySystemConfiguration.label (WebIDL dictionary member) §

Defined in Encrypted Media Extensions

MediaStreamTrack.label (WebIDL attribute) §

Defined in Media Capture and Streams

MockCaptureDeviceConfiguration.label (WebIDL dictionary member) §

Defined in Media Capture Automation

PaymentItem.label (WebIDL dictionary member) §

Defined in Payment Request API 1.1

RsaOaepParams.label (WebIDL dictionary member) §

Defined in Web Cryptography API

RTCDataChannel.label (WebIDL attribute) §

Defined in WebRTC 1.0

RTCDataChannelStats.label (WebIDL dictionary member) §

Defined in WebRTC Statistics

ScreenDetailed.label (WebIDL attribute) §

Defined in Window Management

TextTrack.label (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™

VideoTrack.label (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™

ElementInternals.labels (WebIDL attribute) §

Defined in HTML

HTMLButtonElement.labels (WebIDL attribute) §

HTMLInputElement.labels (WebIDL attribute) §

HTMLMeterElement.labels (WebIDL attribute) §

HTMLOutputElement.labels (WebIDL attribute) §

HTMLProgressElement.labels (WebIDL attribute) §

HTMLSelectElement.labels (WebIDL attribute) §

HTMLTextAreaElement.labels (WebIDL attribute) §

Defined in HTML

Landmark (WebIDL dictionary) §

Defined in Accelerated Shape Detection in Images

Related terms: Landmark.locations, Landmark.type

see also WebIDLPedia

DetectedFace.landmarks (WebIDL dictionary member) §

Defined in Accelerated Shape Detection in Images

LandmarkType (WebIDL enumeration) §

Defined in Accelerated Shape Detection in Images

Related terms: value eye, value mouth, value nose

see also WebIDLPedia

landscape (CSS value for orientation descriptor of @container @rule ) §

Defined in CSS Containment 3

landscape (concept) §

Defined in CSS Paged Media 3

landscape (CSS value for size descriptor of @page @rule ) §

Defined in CSS Paged Media 3

landscape (CSS value for orientation descriptor of @media @rule ) §

Defined in Media Queries 4 , Media Queries 5

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSSOM

"landscape" (value for OrientationLockType WebIDL enumeration) §

Defined in Screen Orientation

"landscape-primary" (value for OrientationLockType WebIDL enumeration) §

Defined in Screen Orientation

"landscape-primary" (value for OrientationType WebIDL enumeration) §

Defined in Screen Orientation

"landscape-secondary" (value for OrientationLockType WebIDL enumeration) §

Defined in Screen Orientation

"landscape-secondary" (value for OrientationType WebIDL enumeration) §

Defined in Screen Orientation

:lang (CSS selector) §

Defined in CSS 2.2 , Selectors 3

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

lang (markup attribute for html-global ) §

Defined in HTML

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

lang (concept for manifest ) §

Defined in Web Application Manifest

lang (markup attribute for core-attributes ) §

Defined in SVG 2

Referenced in SVG Animations 2

HTMLElement.lang (WebIDL attribute) §

Defined in HTML

InputObject.lang (WebIDL attribute) §

Defined in MiniApp Lifecycle

LifecycleError.lang (WebIDL attribute) §

Defined in MiniApp Lifecycle

NDEFRecord.lang (WebIDL attribute) §

Defined in Web NFC API

NDEFRecordInit.lang (WebIDL dictionary member) §

Defined in Web NFC API

Notification.lang (WebIDL attribute) §

Defined in Notifications API

NotificationOptions.lang (WebIDL dictionary member) §

Defined in Notifications API

SpeechRecognition.lang (WebIDL attribute) §

Defined in Web Speech API

SpeechSynthesisUtterance.lang (WebIDL attribute) §

Defined in Web Speech API

SpeechSynthesisVoice.lang (WebIDL attribute) §

Defined in Web Speech API

:lang() (CSS selector) §

Defined in Selectors 4

Referenced in CSS Variables 1

language (concept for Node ) §

Defined in HTML

Referenced in URL Fragment Text Directives, Web Speech API, CSS Text 3, CSS Text 4, Payment Request API 1.1, WAI-ARIA, WAI-ARIA

language (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

language (markup attribute for script ) §

Defined in HTML

AudioTrack.language (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™

NavigatorLanguage.language (WebIDL attribute) §

Defined in HTML

Referenced in Local Font Access

RdfLiteral.language (WebIDL attribute) §

Defined in JSON-LD 1.1 Processing Algorithms and API

TextTrack.language (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™

VideoTrack.language (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™

Language metadata (concept) §

Defined in Internationalization Glossary

Language negotiation (concept) §

Defined in Internationalization Glossary

Referenced in Secure Payment Confirmation

language priority list (concept) §

Defined in ECMAScript Internationalization API

Language priority list (concept) §

Defined in Internationalization Glossary

Referenced in Secure Payment Confirmation

Language subtag (concept) §

Defined in Internationalization Glossary

Language tag (concept) §

Defined in Internationalization Glossary

Language tag extension (concept) §

Defined in Internationalization Glossary

"language-not-supported" (value for SpeechRecognitionErrorCode WebIDL enumeration) §

Defined in Web Speech API

language-range (concept) §

Defined in Internationalization Glossary

"language-unavailable" (value for SpeechSynthesisErrorCode WebIDL enumeration) §

Defined in Web Speech API

languagechange (event for Window, WorkerGlobalScope interface ) §

Defined in HTML

NavigatorLanguage.languages (WebIDL attribute) §

Defined in HTML

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

Defined in CSS Counter Styles 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

large (CSS value for arc, shape() function ) §

Defined in CSS Shapes 2

large (CSS value for font-size ) §

Defined in CSS 2.2

large viewport size (concept) §

Defined in CSS Values 4

large viewport-percentage units (concept) §

Defined in CSS Values 4

AuthenticationExtensionsClientInputs.largeBlob (WebIDL dictionary member) §

Defined in Web Authentication

AuthenticationExtensionsClientOutputs.largeBlob (WebIDL dictionary member) §

Defined in Web Authentication

LargeBlobSupport (WebIDL enumeration) §

Defined in Web Authentication

Related terms: value preferred, value required

see also WebIDLPedia

largeop (markup attribute for mo ) §

Defined in MathML Core

LargestContentfulPaint (WebIDL interface) §

Defined in Largest Contentful Paint

Related terms: LargestContentfulPaint.element, LargestContentfulPaint.id, LargestContentfulPaint.loadTime, LargestContentfulPaint.renderTime, LargestContentfulPaint.size, LargestContentfulPaint.url, LargestContentfulPaint.toJSON()

see also WebIDLPedia

"last" (value for CaptureAction WebIDL enumeration) §

Defined in The Capture-Handle Actions Mechanism

last (CSS value for string() ) §

Defined in CSS Generated Content 3

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

Defined in CSS Inline Layout 3

last (CSS value for hanging-punctuation ) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

last 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

last baseline set (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Inline Layout 3

last child (concept for tree ) §

Defined in DOM

last CSS style sheet set name (concept) §

Defined in CSSOM

last remembered size (concept) §

Defined in CSS Sizing 4

Referenced in CSS Anchor Positioning

last update check time (concept for service worker registration ) §

Defined in Service Workers

last-baseline (CSS value for box-snap ) §

Defined in CSS Line Grid 1

last-baseline alignment (concept) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Flexbox 1, CSS Inline Layout 3

:last-child (CSS selector) §

Defined in Selectors 3 , Selectors 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

Last-Event-ID: (HTTP header) §

Defined in HTML

:last-of-page (CSS selector) §

Defined in CSS GCPM 4

:last-of-type (CSS selector) §

Defined in Selectors 3 , Selectors 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

SyncEvent.lastChance (WebIDL attribute) §

Defined in Background Sync

SyncEventInit.lastChance (WebIDL dictionary member) §

Defined in Background Sync

XRMesh.lastChangedTime (WebIDL attribute) §

Defined in WebXR Mesh Detection

XRPlane.lastChangedTime (WebIDL attribute) §

Defined in WebXR Plane Detection

GroupEffect.lastChild (WebIDL attribute) §

Defined in Web Animations 2

Node.lastChild (WebIDL attribute) §

Defined in DOM

TreeWalker.lastChild() (WebIDL operation) §

Defined in DOM

ParentNode.lastElementChild (WebIDL attribute) §

Defined in DOM

Sensor.[[lastEventFiredAt]] (internal slot) §

Defined in Generic Sensor API

ExtendableMessageEvent.lastEventId (WebIDL attribute) §

Defined in Service Workers

ExtendableMessageEventInit.lastEventId (WebIDL dictionary member) §

Defined in Service Workers

MessageEvent.lastEventId (WebIDL attribute) §

Defined in HTML

MessageEventInit.lastEventId (WebIDL dictionary member) §

Defined in HTML

%TypedArray%.lastIndexOf(searchElement, fromIndex) (WebIDL operation) §

Defined in ECMAScript

Array.lastIndexOf(searchElement, fromIndex) (WebIDL operation) §

Defined in ECMAScript

String.lastIndexOf(searchString, position) (WebIDL operation) §

Defined in ECMAScript

LayoutShift.lastInputTime (WebIDL attribute) §

Defined in Layout Instability

Document.lastModified (WebIDL attribute) §

Defined in HTML

File.lastModified (WebIDL attribute) §

Defined in File API

Referenced in File System, HTML, Clipboard API and events, Indexed DB 3.0

FilePropertyBag.lastModified (WebIDL dictionary member) §

Defined in File API

RTCIceCandidatePairStats.lastPacketReceivedTimestamp (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCInboundRtpStreamStats.lastPacketReceivedTimestamp (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCIceCandidatePairStats.lastPacketSentTimestamp (WebIDL dictionary member) §

Defined in WebRTC Statistics

ResizeObservation.lastReportedSizes (WebIDL attribute) §

Defined in Resize Observer

MediaTrackCapabilities.latency (WebIDL dictionary member) §

Defined in Media Capture and Streams

MediaTrackConstraintSet.latency (WebIDL dictionary member) §

Defined in Media Capture and Streams

MediaTrackSettings.latency (WebIDL dictionary member) §

Defined in Media Capture and Streams

MediaTrackSupportedConstraints.latency (WebIDL dictionary member) §

Defined in Media Capture and Streams

AudioContextOptions.latencyHint (WebIDL dictionary member) §

Defined in Web Audio API

VideoEncoderConfig.latencyMode (WebIDL dictionary member) §

Defined in WebCodecs

LatencyMode (WebIDL enumeration) §

Defined in WebCodecs

Related terms: value quality, value realtime

see also WebIDLPedia

GeolocationCoordinates.latitude (WebIDL attribute) §

Defined in Geolocation API

GeolocationSensor.latitude (WebIDL attribute) §

Defined in Geolocation Sensor

GeolocationSensorReading.latitude (WebIDL dictionary member) §

Defined in Geolocation Sensor

LaunchConsumer (WebIDL callback) §

Defined in Web App Launch Handler API

launched (concept for Document ) §

Defined in MiniApp Lifecycle

"launched" (value for GlobalState WebIDL enumeration) §

Defined in MiniApp Lifecycle

launching a web application (concept) §

Defined in Web Application Manifest

launching a web application with handling (concept) §

Defined in Web App Launch Handler API

Referenced in Manifest Incubations

LaunchParams (WebIDL interface) §

Defined in Web App Launch Handler API

Referenced in Manifest Incubations

Related terms: LaunchParams.files, LaunchParams.targetURL

see also WebIDLPedia

LaunchQueue (WebIDL interface) §

Defined in Web App Launch Handler API

Related terms: LaunchQueue.setConsumer()

see also WebIDLPedia

launchQueue (WebIDL attribute for Window ) §

Defined in Web App Launch Handler API

lavender (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lavenderblush (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lawngreen (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

"lax" (value for CookieSameSite WebIDL enumeration) §

Defined in Cookie Store API

@layer (CSS @rule) §

Defined in CSS Cascading 5

Referenced in CSS Cascading 6, CSS Containment 3, CSS Nesting, CSS Transitions 2

XRLayerEvent.layer (WebIDL attribute) §

Defined in WebXR Layers API 1

XRLayerEventInit.layer (WebIDL dictionary member) §

Defined in WebXR Layers API 1

<layer-name> (CSS type) §

Defined in CSS Cascading 5

CSSImportRule.layerName (WebIDL attribute) §

Defined in CSSOM

MLGraphBuilder.layerNormalization(input, options) (WebIDL operation) §

Defined in Web Neural Network API

XRRenderState.layers (WebIDL attribute) §

Defined in WebXR Layers API 1

XRRenderStateInit.layers (WebIDL dictionary member) §

Defined in WebXR Device API

Referenced in WebXR Layers API 1

MouseEvent.layerX (WebIDL attribute) §

Defined in UI Events

MouseEvent.layerY (WebIDL attribute) §

Defined in UI Events

GPUBindGroup.[[layout]] (internal slot) §

Defined in WebGPU

GPUPipelineBase.[[layout]] (internal slot) §

Defined in WebGPU

GPURenderBundle.[[layout]] (internal slot) §

Defined in WebGPU

GPURenderCommandsMixin.[[layout]] (internal slot) §

Defined in WebGPU

layout (CSS value for contain ) §

Defined in CSS Containment 1 , CSS Containment 2

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

GPUBindGroupDescriptor.layout (WebIDL dictionary member) §

Defined in WebGPU

GPUPipelineDescriptorBase.layout (WebIDL dictionary member) §

Defined in WebGPU

GPUShaderModuleCompilationHint.layout (WebIDL dictionary member) §

Defined in WebGPU

MLGruCellOptions.layout (WebIDL dictionary member) §

Defined in Web Neural Network API

MLGruOptions.layout (WebIDL dictionary member) §

Defined in Web Neural Network API

MLInstanceNormalizationOptions.layout (WebIDL dictionary member) §

Defined in Web Neural Network API

MLLstmCellOptions.layout (WebIDL dictionary member) §

Defined in Web Neural Network API

MLLstmOptions.layout (WebIDL dictionary member) §

Defined in Web Neural Network API

MLPool2dOptions.layout (WebIDL dictionary member) §

Defined in Web Neural Network API

VideoFrameBufferInit.layout (WebIDL dictionary member) §

Defined in WebCodecs

VideoFrameCopyToOptions.layout (WebIDL dictionary member) §

Defined in WebCodecs

XRCompositionLayer.layout (WebIDL attribute) §

Defined in WebXR Layers API 1

XRLayerInit.layout (WebIDL dictionary member) §

Defined in WebXR Layers API 1

XRMediaLayerInit.layout (WebIDL dictionary member) §

Defined in WebXR Layers API 1

layout containment (concept) §

Defined in CSS Containment 1 , CSS Containment 2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Anchor Positioning, CSS Containment 3, CSS Grid Layout 2, CSS Overflow 4, CSS Regions 1

layout shift value (concept) §

Defined in Layout Instability

layout viewport (concept) §

Defined in CSSOM View

Referenced in CSS Positioned Layout 3, CSS View Transitions 1

<layout-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 margin-box, CSS value padding-box

layout-internal (concept) §

Defined in CSS Display 4 , CSS Display 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

layout() (CSS value for display ) §

Defined in CSS Layout API 1

layoutchange (concept) §

Defined in Keyboard Map

layoutchange (event for Keyboard ) §

Defined in Keyboard Map

LayoutChild (WebIDL interface) §

Defined in CSS Layout API 1

Related terms: LayoutChild.[[box]], undefined[[styleMap]], LayoutChild.[[unique id]], LayoutChild.intrinsicSizes(), LayoutChild.layoutNextFragment(constraints, breakToken)

see also WebIDLPedia

[[layoutChildMap]] (internal slot for box ) §

Defined in CSS Layout API 1

LayoutConstraints (WebIDL interface) §

Defined in CSS Layout API 1

Related terms: LayoutConstraints.availableBlockSize, LayoutConstraints.availableInlineSize, LayoutConstraints.blockFragmentationOffset, LayoutConstraints.blockFragmentationType, LayoutConstraints.data, LayoutConstraints.fixedBlockSize, LayoutConstraints.fixedInlineSize, LayoutConstraints.percentageBlockSize, LayoutConstraints.percentageInlineSize

see also WebIDLPedia

LayoutConstraintsOptions (WebIDL dictionary) §

Defined in CSS Layout API 1

Related terms: LayoutConstraintsOptions.availableBlockSize, LayoutConstraintsOptions.availableInlineSize, LayoutConstraintsOptions.blockFragmentationOffset, LayoutConstraintsOptions.blockFragmentationType, LayoutConstraintsOptions.data, LayoutConstraintsOptions.fixedBlockSize, LayoutConstraintsOptions.fixedInlineSize, LayoutConstraintsOptions.percentageBlockSize, LayoutConstraintsOptions.percentageInlineSize

see also WebIDLPedia

LayoutEdges (WebIDL interface) §

Defined in CSS Layout API 1

Related terms: LayoutEdges.block, LayoutEdges.blockEnd, LayoutEdges.blockStart, LayoutEdges.inline, LayoutEdges.inlineEnd, LayoutEdges.inlineStart

see also WebIDLPedia

LayoutFragment (WebIDL interface) §

Defined in CSS Layout API 1

Related terms: LayoutFragment.blockOffset, LayoutFragment.blockSize, LayoutFragment.breakToken, LayoutFragment.data, LayoutFragment.inlineOffset, LayoutFragment.inlineSize, LayoutFragment.[[unique id]]

see also WebIDLPedia

LayoutChild.layoutNextFragment(constraints, breakToken) (WebIDL operation) §

Defined in CSS Layout API 1

LayoutOptions (WebIDL dictionary) §

Defined in CSS Layout API 1

Related terms: LayoutOptions.childDisplay, LayoutOptions.sizing

see also WebIDLPedia

LayoutShift (WebIDL interface) §

Defined in Layout Instability

Referenced in Timing Entry Names Registry

Related terms: LayoutShift.hadRecentInput, LayoutShift.lastInputTime, LayoutShift.sources, LayoutShift.value, LayoutShift.toJSON()

see also WebIDLPedia

LayoutShiftAttribution (WebIDL interface) §

Defined in Layout Instability

Related terms: LayoutShiftAttribution.currentRect, LayoutShiftAttribution.node, LayoutShiftAttribution.previousRect

see also WebIDLPedia

LayoutSizingMode (WebIDL enumeration) §

Defined in CSS Layout API 1

Related terms: value block-like, value manual

see also WebIDLPedia

layoutWorklet (WebIDL attribute for CSS ) §

Defined in CSS Layout API 1

LayoutWorkletGlobalScope (WebIDL interface) §

Defined in CSS Layout API 1

Related terms: LayoutWorkletGlobalScope.registerLayout(name, layoutCtor)

see also WebIDLPedia

lazy (value for loading attribute of iframe element, loading attribute of img element ) §

Defined in HTML

LCH (CSS value for lch() ) §

Defined in CSS Color 4

Referenced in CSS Color 5

lch() (CSS function) §

Defined in CSS Color 4 , CSS Color 5

Referenced in CSS Typed OM 1

Related terms: CSS value alpha, CSS value c, CSS value h, CSS value l, CSS value LCH

<leader-type> (CSS type) §

Defined in CSS Generated Content 3

leader() (CSS function for <content-list>, content property ) §

Defined in CSS Generated Content 3

leader() (CSS function) §

Defined in CSS Generated Content 3

Related terms: CSS value dotted, CSS value solid, CSS value space

leading (CSS value for text-box-edge ) §

Defined in CSS Inline Layout 3

leading (CSS value for initial-letter-align ) §

Defined in CSS Inline Layout 3

leading surrogate (concept) §

Defined in Infra

leading surrogate (concept for ECMAScript ) §

Defined in ECMAScript

MLGraphBuilder.leakyRelu(input, options) (WebIDL operation) §

Defined in Web Neural Network API

MLGraphBuilder.leakyRelu(options) (WebIDL operation) §

Defined in Web Neural Network API

"leave" (value for SmartCardDisposition WebIDL enumeration) §

Defined in Web Smart Card API

Navigator.leaveAdInterestGroup(group) (WebIDL operation) §

Defined in Protected Audience

LeaveCriticalSection (algorithm) §

Defined in ECMAScript

leavepictureinpicture (event for HTMLVideoElement ) §

Defined in Picture-in-Picture

ledger (CSS value for <page-size> ) §

Defined in CSS Paged Media 3

:left (CSS value for @page ) §

Defined in CSS Paged Media 3

Referenced in CSS Syntax 3

:left (concept) §

Defined in CSS 2.1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

:left (CSS selector) §

Defined in CSS 2.2

<left> (CSS type for clip ) §

Defined in CSS Masking 1

<left> (CSS type) §

Defined in CSS 2.1 , CSS 2.2

Related terms: CSS value auto

left (CSS value for border-limit ) §

Defined in CSS Borders and Box Decorations 4

"left" (value for CanvasTextAlign WebIDL enumeration) §

Defined in HTML

"left" (value for GamepadHand WebIDL enumeration) §

Defined in Gamepad Extensions

left (CSS value for justify-content, justify-items property, justify-self property ) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

left (CSS value for <inset-area>, inset-area property ) §

Defined in CSS Anchor Positioning

left (CSS value for anchor() ) §

Defined in CSS Anchor Positioning

left (CSS value for background-position ) §

Defined in CSS Backgrounds 3 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

left (CSS value for break-after, break-before property ) §

Defined in CSS Fragmentation 3 , CSS Fragmentation 4

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

"left" (value for SpatialNavigationDirection WebIDL enumeration) §

Defined in CSS Spatial Navigation 1

left (CSS value for float ) §

Defined in CSS Page Floats , CSS 2.2

left (CSS value for clear ) §

Defined in CSS Page Floats , CSS 2.2

left (CSS property) §

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

Referenced in HTML, CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Anchor Positioning, CSS Containment 2, CSS Grid Layout 1, CSS Grid Layout 2, CSS Logical Properties 1, CSS Scroll Anchoring 1, CSS Speech 1, CSS Table 3, CSS Transitions, CSS Typed OM 1, CSS User Interface 4, CSS Values 4, CSS Writing Modes 3, CSS Writing Modes 4, CSSOM, Motion Path 1, WebVTT: The Web Video Text Tracks Format

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

left (CSS value for voice-balance ) §

Defined in CSS Speech 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

left (CSS value for text-align ) §

Defined in CSS Text 3 , CSS Text 4 , CSS 2.2

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

left (CSS value for text-group-align ) §

Defined in CSS Text 4

left (CSS value for text-underline-position ) §

Defined in CSS Text Decoration 3 , CSS Text Decoration 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

left (CSS value for text-emphasis-position ) §

Defined in CSS Text Decoration 3 , CSS Text Decoration 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

left (CSS value for transform-origin ) §

Defined in CSS Transforms 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

left (CSS value for perspective-origin ) §

Defined in CSS Transforms 2

left (CSS value for page-break-after, page-break-before property, page-break-inside property ) §

Defined in CSS 2.2

left (concept for supported open() feature name ) §

Defined in CSSOM View

"left" (value for VideoFacingModeEnum WebIDL enumeration) §

Defined in Media Capture and Streams

"left" (value for AlignSetting WebIDL enumeration) §

Defined in WebVTT: The Web Video Text Tracks Format

"left" (value for XREye WebIDL enumeration) §

Defined in WebXR Device API

Referenced in WebXR Layers API 1

"left" (value for XRHandedness WebIDL enumeration) §

Defined in WebXR Device API

CSSPositionTryDescriptors.left (WebIDL attribute) §

Defined in CSS Anchor Positioning

left (WebIDL attribute for DOMRectReadOnly DOMRect ) §

Defined in Geometry Interfaces 1

DOMRectReadOnly.left (WebIDL attribute) §

Defined in Geometry Interfaces 1

ScreenDetailed.left (WebIDL attribute) §

Defined in Window Management

ScrollToOptions.left (WebIDL dictionary member) §

Defined in CSSOM View

Left Page (concept) §

Defined in CSS Paged Media 3

@left-bottom (CSS @rule) §

Defined in CSS Paged Media 3

left-capturing parenthesis (concept for ECMAScript ) §

Defined in ECMAScript

Referenced in Regular Expression Pattern Modifiers for ECMAScript

@left-middle (CSS @rule) §

Defined in CSS Paged Media 3

left-to-right (concept) §

Defined in Internationalization Glossary

@left-top (CSS @rule) §

Defined in CSS Paged Media 3

leftmargin (markup attribute for body ) §

Defined in HTML

GamepadEffectParameters.leftTrigger (WebIDL dictionary member) §

Defined in Gamepad

leftwards (CSS value for voice-balance ) §

Defined in CSS Speech 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

legacy (CSS value for justify-items ) §

Defined in CSS Box Alignment 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

legacy (CSS value for min-intrinsic-sizing ) §

Defined in CSS Sizing 4

legacy callback interface object (concept) §

Defined in Web IDL

Legacy character encodings (concept) §

Defined in Internationalization Glossary

legacy color syntax (concept) §

Defined in CSS Color 4

Referenced in CSS Color 5

legacy extract an encoding (concept) §

Defined in Fetch

Referenced in HTML

legacy factory function (concept) §

Defined in Web IDL

legacy name alias (concept) §

Defined in CSS Cascading 4 , CSS Cascading 5

Referenced in Compatibility, CSS Snapshot 2022, CSS Snapshot 2023, CSS Flexbox 1, CSS Fonts 4, CSS Text 3, CSS Text 4, CSS User Interface 4

Legacy platform objects (concept) §

Defined in Web IDL

Referenced in HTML

legacy shorthand (concept) §

Defined in CSS Cascading 4 , CSS Cascading 5

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

legacy value alias (concept for CSS ) §

Defined in CSS Cascading 4 , CSS Cascading 5

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

legacy-canceled-activation behavior (concept for EventTarget ) §

Defined in DOM

Referenced in HTML

legacy-clone a traversable storage shed (concept) §

Defined in Storage

Referenced in HTML

<legacy-device-cmyk-syntax> (CSS type) §

Defined in CSS Color 5

<legacy-hsl-syntax> (CSS type) §

Defined in CSS Color 4

<legacy-hsla-syntax> (CSS type) §

Defined in CSS Color 4

legacy-obtain service worker fetch event listener callbacks (concept) §

Defined in DOM

Referenced in Service Workers

legacy-pre-activation behavior (concept for EventTarget ) §

Defined in DOM

Referenced in HTML

<legacy-pseudo-element-selector> (CSS type) §

Defined in Selectors 4

<legacy-rgb-syntax> (CSS type) §

Defined in CSS Color 4

<legacy-rgba-syntax> (CSS type) §

Defined in CSS Color 4

LegacyFactoryFunction (WebIDL extended attribute) §

Defined in Web IDL

Referenced in HTML

LegacyLenientSetter (WebIDL extended attribute) §

Defined in Web IDL

Referenced in Fullscreen API

LegacyLenientThis (WebIDL extended attribute) §

Defined in Web IDL

Referenced in HTML

LegacyNamespace (WebIDL extended attribute) §

Defined in Web IDL

Referenced in WebAssembly JavaScript Interface: Content Security Policy, WebAssembly JavaScript Interface: Exception Handling, WebAssembly JavaScript Interface: Promise Integration, WebAssembly JavaScript Interface: Type Reflection, WebAssembly JavaScript Interface

LegacyNoInterfaceObject (WebIDL extended attribute) §

Defined in Web IDL

LegacyNullToEmptyString (WebIDL extended attribute) §

Defined in Web IDL

Referenced in DOM, HTML, CSS Fonts 4, CSSOM, Trusted Types

LegacyOverrideBuiltIns (WebIDL extended attribute) §

Defined in Web IDL

Referenced in HTML

LegacyPlatformObjectGetOwnProperty (algorithm) §

Defined in Web IDL

Referenced in HTML

LegacyTreatNonObjectAsNull (WebIDL extended attribute) §

Defined in Web IDL

Referenced in HTML

LegacyUnenumerableNamedProperties (WebIDL extended attribute) §

Defined in Web IDL

Referenced in DOM, HTML

LegacyUnforgeable (WebIDL extended attribute) §

Defined in Web IDL

Referenced in DOM, HTML, EPUB Reading Systems 3.3

LegacyWindowAlias (WebIDL extended attribute) §

Defined in Web IDL

Referenced in URL, Geometry Interfaces 1

legal (CSS value for <page-size> ) §

Defined in CSS Paged Media 3

legend (markup element) §

Defined in HTML

Referenced in CSS Display 4, CSS Display 3, HTML Accessibility API Mappings 1.0, ARIA in HTML, WAI-ARIA, WAI-ARIA

Related terms: markup attribute align

lemonchiffon (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

AudioBuffer.[[length]] (internal slot) §

AudioBuffer.[[length]] (internal slot) §

Defined in Web Audio API , Web Audio API

<length> (CSS value for bottom, inset property, inset-block property, inset-block-end property, inset-block-start property, inset-inline property, inset-inline-end property, inset-inline-start property, left property, right property, top property ) §

Defined in CSS Positioned Layout 3 , CSS 2.2

<length> (CSS value for word-spacing ) §

Defined in CSS Text 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

<length> (CSS value for letter-spacing ) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

<length> (CSS value for text-indent ) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

<length> (CSS type) §

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

Referenced in CSS Borders and Box Decorations 4, CSS Conditional Values 1, CSS Environment Variables 1, CSS Extensions, CSS Values 5, Quirks Mode, Window Controls Overlay, CSS Anchor Positioning, CSS Backgrounds 3, CSS Cascading 4, CSS Cascading 5, CSS Containment 3, CSS Grid Layout 1, CSS Grid Layout 2, CSS Images 3, CSS Inline Layout 3, CSS Multicol 1, CSS Overflow 3, CSS Overflow 4, CSS Paged Media 3, CSS Page Floats, CSS Properties and Values API 1, CSS Rhythmic Sizing, CSS Scroll Snap 1, CSS Sizing 3, CSS Sizing 4, CSS Table 3, CSS Text 3, CSS Text 4, CSS Text Decoration 3, CSS Text Decoration 4, CSS Transforms 1, CSS Transforms 2, CSS Typed OM 1, CSS User Interface 4, CSSOM, Filter Effects 1, Geometry Interfaces 1, Media Queries 4, Media Queries 5, VirtualKeyboard API

Related terms: concept advance measure, CSS value cap, CSS value ch, CSS value cm, CSS value dvb, CSS value dvh, CSS value dvi, CSS value dvmax, CSS value dvmin, CSS value dvw, CSS value em, CSS value ex, CSS value ic, CSS value in, CSS value lh, CSS value lvb, CSS value lvh, CSS value lvi, CSS value lvmax, CSS value lvmin, CSS value lvw, CSS value mm, CSS value pc, CSS value pt, CSS value px, CSS value Q, CSS value rcap, CSS value rch, CSS value rem, CSS value rex, CSS value ric, CSS value rlh, CSS value svb, CSS value svh, CSS value svi, CSS value svmax, CSS value svmin, CSS value svw, CSS value vb, CSS value vh, CSS value vi, CSS value vmax, CSS value vmin, CSS value vw

<length> (CSS value for <padding-width> ) §

Defined in CSS 2.2

<length> (CSS value for <border-width>, border-bottom-width property, border-left-width property, border-right-width property, border-top-width property, border-width property ) §

Defined in CSS 2.2

<length> (CSS value for vertical-align ) §

Defined in CSS 2.2

length (concept for Node ) §

Defined in DOM

Referenced in URL Fragment Text Directives, Selection API

length (CSS value for attr() ) §

Defined in CSS Values 5

length (concept for body ) §

Defined in Fetch

Referenced in WebDriver BiDi, XMLHttpRequest

length (concept for byte sequence ) §

Defined in Infra

Referenced in Fetch, File System, MIME Sniffing, Streams, Source Map, Web NFC API, Web IDL, Background Fetch, Cookie Store API, Private State Token API, Protected Audience, Indexed DB 3.0, WebGPU, WebTransport, XMLHttpRequest

length (concept for string, scalar value string ) §

Defined in Infra

Referenced in DOM, HTML, Private Click Measurement, URL, URL Pattern, WebDriver BiDi, Attribution Reporting, Cookie Store API, File System Access, Local Font Access, URL Fragment Text Directives, Shared Storage API, Protected Audience, CSS Properties and Values API 1, Referrer Policy, WebDriver

"length" (value for CSSNumericBaseType WebIDL enumeration) §

Defined in CSS Typed OM 1

%TypedArray%.length (WebIDL attribute) §

Defined in ECMAScript

AesCtrParams.length (WebIDL dictionary member) §

Defined in Web Cryptography API

AesDerivedKeyParams.length (WebIDL dictionary member) §

Defined in Web Cryptography API

AesKeyAlgorithm.length (WebIDL dictionary member) §

Defined in Web Cryptography API

AesKeyGenParams.length (WebIDL dictionary member) §

Defined in Web Cryptography API

AnimationNodeList.length (WebIDL attribute) §

Defined in Web Animations 2

AudioBufferOptions.length (WebIDL dictionary member) §

Defined in Web Audio API

AudioTrackList.length (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™

CharacterData.length (WebIDL attribute) §

Defined in DOM

CSSKeyframesRule.length (WebIDL attribute) §

Defined in CSS Animations 1

CSSNumericArray.length (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSNumericType.length (WebIDL dictionary member) §

Defined in CSS Typed OM 1

CSSPerspective.length (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSRuleList.length (WebIDL attribute) §

Defined in CSSOM

CSSStyleDeclaration.length (WebIDL attribute) §

Defined in CSSOM

CSSTransformValue.length (WebIDL attribute) §

Defined in CSS Typed OM 1

CSSUnparsedValue.length (WebIDL attribute) §

Defined in CSS Typed OM 1

DataTransferItemList.length (WebIDL attribute) §

Defined in HTML

DOMRectList.length (WebIDL attribute) §

Defined in Geometry Interfaces 1

DOMStringList.length (WebIDL attribute) §

Defined in HTML

DOMTokenList.length (WebIDL attribute) §

Defined in DOM

FileList.length (WebIDL attribute) §

Defined in File API

FontFacePalette.length (WebIDL attribute) §

Defined in CSS Font Loading 3

FontFacePalettes.length (WebIDL attribute) §

Defined in CSS Font Loading 3

GPUCompilationMessage.length (WebIDL attribute) §

Defined in WebGPU

History.length (WebIDL attribute) §

Defined in HTML

Referenced in Fenced Frame

HmacImportParams.length (WebIDL dictionary member) §

Defined in Web Cryptography API

HmacKeyAlgorithm.length (WebIDL dictionary member) §

Defined in Web Cryptography API

HmacKeyGenParams.length (WebIDL dictionary member) §

Defined in Web Cryptography API

HTMLAllCollection.length (WebIDL attribute) §

Defined in HTML

HTMLCollection.length (WebIDL attribute) §

Defined in DOM

Referenced in HTML

HTMLFormElement.length (WebIDL attribute) §

Defined in HTML

HTMLOptionsCollection.length (WebIDL attribute) §

Defined in HTML

HTMLSelectElement.length (WebIDL attribute) §

Defined in HTML

ImageTrackList.length (WebIDL attribute) §

Defined in WebCodecs

MediaList.length (WebIDL attribute) §

Defined in CSSOM

MimeTypeArray.length (WebIDL attribute) §

Defined in HTML

NamedNodeMap.length (WebIDL attribute) §

Defined in DOM

NodeList.length (WebIDL attribute) §

Defined in DOM

OfflineAudioContext.length (WebIDL attribute) §

Defined in Web Audio API

OfflineAudioContextOptions.length (WebIDL dictionary member) §

Defined in Web Audio API

Plugin.length (WebIDL attribute) §

Defined in HTML

PluginArray.length (WebIDL attribute) §

Defined in HTML

SourceBufferList.length (WebIDL attribute) §

Defined in Media Source Extensions™

SpeechGrammarList.length (WebIDL attribute) §

Defined in Web Speech API

SpeechRecognitionResult.length (WebIDL attribute) §

Defined in Web Speech API

SpeechRecognitionResultList.length (WebIDL attribute) §

Defined in Web Speech API

Storage.length (WebIDL attribute) §

Defined in HTML

StyleSheetList.length (WebIDL attribute) §

Defined in CSSOM

Table.length (WebIDL attribute) §

Table.length (WebIDL attribute) §

Table.length (WebIDL attribute) §

Table.length (WebIDL attribute) §

Table.length (WebIDL attribute) §

Table.length (WebIDL attribute) §

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

TextTrackCueList.length (WebIDL attribute) §

Defined in HTML

TextTrackList.length (WebIDL attribute) §

Defined in HTML

TimeRanges.length (WebIDL attribute) §

Defined in HTML

TouchList.length (WebIDL attribute) §

Defined in Touch Events

VideoTrackList.length (WebIDL attribute) §

Defined in HTML

Referenced in Media Source Extensions™

Window.length (WebIDL attribute) §

Defined in HTML

XRInputSourceArray.length (WebIDL attribute) §

Defined in WebXR Device API

<length [0,∞]> (CSS value for <radial-size>, radial-gradient() function, repeating-radial-gradient() function ) §

Defined in CSS Images 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

<length-percentage> (CSS value for word-spacing ) §

Defined in CSS Text 4

<length-percentage> (CSS type) §

Defined in CSS Values 3 , CSS Values 4

Referenced in CSS Backgrounds 4, CSS Borders and Box Decorations 4, CSS Scroll Snap 2, CSS Shapes 2, CSS Values 5, CSS Box Alignment 3, CSS Anchor Positioning, CSS Backgrounds 3, CSS Box Model 4, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Flexbox 1, CSS Fonts 4, CSS Grid Layout 1, CSS Grid Layout 2, CSS Images 3, CSS Inline Layout 3, CSS Multicol 1, CSS Overflow 3, CSS Page Floats, CSS Positioned Layout 3, CSS Properties and Values API 1, CSS Scroll Snap 1, CSS Shapes 1, CSS Sizing 3, CSS Text 3, CSS Text 4, CSS Text Decoration 4, CSS Transforms 1, CSS Transforms 2, CSS Typed OM 1, Filter Effects 1, Motion Path 1, Scroll-driven Animations

WorkletSharedStorage.length() (WebIDL operation) §

Defined in Shared Storage API

lengthAdjust (markup attribute for text ) §

Defined in SVG 2

SVGTextContentElement.lengthAdjust (WebIDL attribute) §

Defined in SVG 2

SVGTextContentElement.LENGTHADJUST_SPACING (WebIDL constant) §

Defined in SVG 2

SVGTextContentElement.LENGTHADJUST_SPACINGANDGLYPHS (WebIDL constant) §

Defined in SVG 2

SVGTextContentElement.LENGTHADJUST_UNKNOWN (WebIDL constant) §

Defined in SVG 2

ProgressEvent.lengthComputable (WebIDL attribute) §

Defined in XMLHttpRequest

Referenced in HTML

ProgressEventInit.lengthComputable (WebIDL dictionary member) §

Defined in XMLHttpRequest

LengthOfArrayLike (algorithm) §

Defined in ECMAScript

less (CSS value for prefers-contrast descriptor of @media @rule ) §

Defined in Media Queries 5

"less" (value for GPUCompareFunction WebIDL enumeration) §

Defined in WebGPU

less public (concept for IP address space ) §

Defined in Private Network Access

"less-equal" (value for GPUCompareFunction WebIDL enumeration) §

Defined in WebGPU

MLGraphBuilder.lesser(a, b) (WebIDL operation) §

Defined in Web Neural Network API

MLGraphBuilder.lesserOrEqual(a, b) (WebIDL operation) §

Defined in Web Neural Network API

letter (CSS value for <page-size> ) §

Defined in CSS Paged Media 3

letter (concept) §

Defined in CSS Syntax 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Ruby Annotation Layout 1, CSS Text Decoration 4, CSS Transforms 1

letter-spacing (CSS property) §

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

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Fonts 4, CSS Inline Layout 3, CSS Lists 3, CSS Text Decoration 4, CSS Typed OM 1, CSS Values 4, CSS Writing Modes 3, CSS Writing Modes 4, Filter Effects 1

Related terms: CSS value <length>, CSS value normal

BatteryManager.level (WebIDL attribute) §

Defined in Battery Status API

levels (concept) §

Defined in CSS Snapshot 2022 , CSS Snapshot 2023

LexicalEnvironment (concept for ECMAScript Code Execution Contexts ) §

Defined in ECMAScript

lexicographic code unit order (concept for ECMAScript ) §

Defined in ECMAScript

lh (CSS value for <length> ) §

Defined in CSS Values 4

Referenced in CSS Properties and Values API 1

lh(value) (WebIDL operation for CSS ) §

Defined in CSS Typed OM 1

li (markup element) §

Defined in HTML

Referenced in CSS Anchor Positioning, CSS Lists 3, EPUB 3.3, HTML Accessibility API Mappings 1.0, ARIA in HTML, Publication Manifest, Selectors 4, WAI-ARIA, WAI-ARIA

Related terms: markup attribute type, markup attribute value

liaison (concept) §

Defined in W3C Process Document

license (value for rel attribute of a, rel attribute of area element, rel attribute of form element, rel attribute of link element ) §

Defined in HTML

"license-release" (value for MediaKeyMessageType WebIDL enumeration) §

Defined in Encrypted Media Extensions

"license-renewal" (value for MediaKeyMessageType WebIDL enumeration) §

Defined in Encrypted Media Extensions

"license-request" (value for MediaKeyMessageType WebIDL enumeration) §

Defined in Encrypted Media Extensions

Lifecycle events (concept for service worker ) §

Defined in Service Workers

Global.lifecycleError (WebIDL attribute) §

Defined in MiniApp Lifecycle

LifecycleError (WebIDL interface) §

Defined in MiniApp Lifecycle

Related terms: LifecycleError.dir, LifecycleError.errorDescription, LifecycleError.lang

see also WebIDLPedia

Client.lifecycleState (WebIDL attribute) §

Defined in Page Lifecycle

lifecycleState (WebIDL attribute for ServiceWorkerClient ) §

Defined in Page Lifecycle

lifetime (concept for blob url ) §

Defined in File API

lifetime (concept for permission ) §

Defined in Permissions

GenerateBidInterestGroup.lifetimeMs (WebIDL dictionary member) §

Defined in Protected Audience

light (CSS value for color-scheme ) §

Defined in CSS Color Adjustment 1

Referenced in CSS Color 5

light (CSS value for font-palette ) §

Defined in CSS Fonts 4

Referenced in CSS Snapshot 2023

light (CSS value for base-palette ) §

Defined in CSS Fonts 4

Referenced in CSS Snapshot 2023

light (CSS value for prefers-color-scheme descriptor of @media @rule ) §

Defined in Media Queries 5

light color scheme (concept) §

Defined in CSS Color Adjustment 1

light tree (concept) §

Defined in DOM

Referenced in CSS Cascading 4, CSS Cascading 5, CSS Scoping 1

light-dark() (CSS function) §

Defined in CSS Color 5

lightblue (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightcoral (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightcyan (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lighten (CSS value for <blend-mode> ) §

Defined in Compositing 2 , Compositing 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

lighter (CSS value for font-weight ) §

Defined in CSS Fonts 4 , CSS 2.2

Referenced in CSS Snapshot 2023

lighter (value for operator attribute of feComposite ) §

Defined in Filter Effects 1

lightgoldenrodyellow (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightgray (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightgreen (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightgrey (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lighting-color (CSS property) §

Defined in Filter Effects 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Color Adjustment 1

lightpink (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightsalmon (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightseagreen (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightskyblue (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightslategray (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightslategrey (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightsteelblue (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lightyellow (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

lime (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4 , CSS 2.2

Referenced in CSS Color 5

limegreen (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

limited-quirks mode (concept) §

Defined in DOM

Referenced in HTML, Quirks Mode

limitingConeAngle (markup attribute for feSpotLight ) §

Defined in Filter Effects 1

SVGFESpotLightElement.limitingConeAngle (WebIDL attribute) §

Defined in Filter Effects 1

[[limits]] (internal slot for adapter ) §

Defined in WebGPU

[[limits]] (internal slot for device ) §

Defined in WebGPU

GPUAdapter.limits (WebIDL attribute) §

Defined in WebGPU

GPUDevice.limits (WebIDL attribute) §

Defined in WebGPU

line (CSS value for shape() ) §

Defined in CSS Shapes 2

line (CSS value for footnote-policy ) §

Defined in CSS GCPM 3

"line" (value for BreakType WebIDL enumeration) §

Defined in CSS Layout API 1

line (CSS value for wrap-after, wrap-before property ) §

Defined in CSS Text 4

line (markup element) §

Defined in SVG 2

Related terms: markup attribute requiredExtensions, markup attribute systemLanguage, markup attribute x1, markup attribute x2, markup attribute y1, markup attribute y2

ProfilerFrame.line (WebIDL dictionary member) §

Defined in JS Self-Profiling API

VTTCue.line (WebIDL attribute) §

Defined in WebVTT: The Web Video Text Tracks Format

line box (concept) §

Defined in CSS Inline Layout 3

Referenced in CSS Overflow 3, CSS Overflow 4, CSS Positioned Layout 3, CSS Pseudo-Elements 4, CSS Ruby Annotation Layout 1, CSS Text 3, CSS Text 4

line box (concept) §

Defined in CSS 2.1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Fragmentation 3

line break (concept) §

Defined in CSS Text 3 , CSS Text 4

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

line breaking process (concept) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

line join shape (concept) §

Defined in CSS Fill and Stroke 3

line join shape (concept) §

Defined in SVG Strokes

line join shape (concept) §

Defined in SVG 2

line name (concept) §

Defined in CSS Grid Layout 1 , CSS Grid Layout 2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

line number (concept for violation ) §

Defined in Content Security Policy 3

line orientation (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3

line-break (CSS property) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

Related terms: CSS value anywhere, CSS value auto, CSS value loose, CSS value normal, CSS value strict

line-clamp (CSS property) §

Defined in CSS Overflow 4

Referenced in CSS Overflow 3

Related terms: CSS value <block-ellipsis>, CSS value none

<line-command> (CSS type for shape() ) §

Defined in CSS Shapes 2

line-gap-override (CSS descriptor for @font-face ) §

Defined in CSS Fonts 4 , CSS Fonts 5

CSSFontFaceDescriptors.line-gap-override (WebIDL attribute) §

Defined in CSS Fonts 4

line-grid (CSS property) §

Defined in CSS Line Grid 1

Referenced in CSS Rhythmic Sizing, CSS Typed OM 1

Related terms: CSS value create, CSS value match-parent

line-height (CSS property) §

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

Referenced in HTML, Quirks Mode, CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Containment 3, CSS Fonts 4, CSS Fonts 5, CSS Overflow 4, CSS Properties and Values API 1, CSS Pseudo-Elements 4, CSS Rhythmic Sizing, CSS Ruby Annotation Layout 1, CSS Typed OM 1, CSS Values 3, CSS Values 4, CSS Viewport 1, CSS Writing Modes 3, CSS Writing Modes 4, CSSOM, WebVTT: The Web Video Text Tracks Format

Related terms: CSS value normal

line-height-step (CSS property) §

Defined in CSS Rhythmic Sizing

Referenced in CSS Line Grid 1, CSS Typed OM 1

line-left (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Inline Layout 3, CSS Overflow 4, CSS Text 3, CSS Text 4

"line-left" (value for PositionAlignSetting WebIDL enumeration) §

Defined in WebVTT: The Web Video Text Tracks Format

"line-list" (value for GPUPrimitiveTopology WebIDL enumeration) §

Defined in WebGPU

<line-name-list> (CSS type) §

Defined in CSS Grid Layout 2

<line-names> (CSS type) §

Defined in CSS Grid Layout 1 , CSS Grid Layout 2

line-over (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Inline Layout 3, CSS Positioned Layout 3, CSS Ruby Annotation Layout 1

line-padding (CSS property) §

Defined in CSS Text 4

line-relative (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

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

line-relative direction (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

line-right (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Inline Layout 3, CSS Overflow 4, CSS Text 3, CSS Text 4

"line-right" (value for PositionAlignSetting WebIDL enumeration) §

Defined in WebVTT: The Web Video Text Tracks Format

line-snap (CSS property) §

Defined in CSS Line Grid 1

Referenced in CSS Typed OM 1

Related terms: CSS value baseline, CSS value contain, CSS value none

"line-strip" (value for GPUPrimitiveTopology WebIDL enumeration) §

Defined in WebGPU

<line-style> (CSS type) §

Defined in CSS Backgrounds 3

Referenced in CSS Borders and Box Decorations 4, CSS Multicol 1, CSS User Interface 4

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

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

Defined in CSS Text Decoration 3 , CSS Text Decoration 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS 2.2

line-under (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Alignment 3, CSS Inline Layout 3, CSS Positioned Layout 3, CSS Ruby Annotation Layout 1

<line-width> (CSS type) §

Defined in CSS Backgrounds 3

Referenced in Compatibility, CSS Borders and Box Decorations 4, CSS Multicol 1, CSS User Interface 4

Related terms: CSS value medium, CSS value thick, CSS value thin

VTTCue.lineAlign (WebIDL attribute) §

Defined in WebVTT: The Web Video Text Tracks Format

LineAlignSetting (WebIDL enumeration) §

Defined in WebVTT: The Web Video Text Tracks Format

Related terms: value center, value end, value start

see also WebIDLPedia

LineAndPositionSetting (WebIDL type alias) §

Defined in WebVTT: The Web Video Text Tracks Format

see also WebIDLPedia

linear (CSS value for <easing-function> ) §

Defined in CSS Easing Functions 2

linear (CSS value for <easing-function> ) §

Defined in CSS Easing Functions 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

linear (value for type ) §

Defined in Filter Effects 1

"linear" (value for DistanceModelType WebIDL enumeration) §

Defined in Web Audio API

"linear" (value for VideoTransferCharacteristics WebIDL enumeration) §

Defined in WebCodecs

"linear" (value for GPUMipmapFilterMode WebIDL enumeration) §

Defined in WebGPU

"linear" (value for GPUFilterMode WebIDL enumeration) §

Defined in WebGPU

"linear" (value for MLInterpolationMode WebIDL enumeration) §

Defined in Web Neural Network API

linear (concept for interpolation type ) §

Defined in WebGPU Shading Language

linear easing function (concept) §

Defined in CSS Easing Functions 2 , CSS Easing Functions 1

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

Related terms: concept serialized computed value

linear-acceleration virtual sensor type (concept) §

Defined in DeviceOrientation Event

Referenced in Accelerometer

<linear-color-hint> (CSS type) §

Defined in CSS Images 3 , CSS Images 4

<linear-color-stop> (CSS type) §

Defined in CSS Images 3 , CSS Images 4

<linear-easing-function> (CSS type) §

Defined in CSS Easing Functions 2

<linear-gradient-syntax> (CSS type) §

Defined in CSS Images 3 , CSS Images 4

linear-gradient() (CSS function) §

Defined in CSS Images 3

Referenced in CSS Values 3, CSS Values 4

<linear-stop> (CSS type) §

Defined in CSS Easing Functions 2

<linear-stop-length> (CSS type) §

Defined in CSS Easing Functions 2

<linear-stop-list> (CSS type) §

Defined in CSS Easing Functions 2

linear() (CSS function) §

Defined in CSS Easing Functions 2

Referenced in CSS Positioned Layout 4

MLGraphBuilder.linear(input, options) (WebIDL operation) §

Defined in Web Neural Network API

MLGraphBuilder.linear(options) (WebIDL operation) §

Defined in Web Neural Network API

GamepadPose.linearAcceleration (WebIDL attribute) §

Defined in Gamepad Extensions

LinearAccelerationSensor (WebIDL interface) §

Defined in Accelerometer

Related terms: new LinearAccelerationSensor(options)

see also WebIDLPedia

new LinearAccelerationSensor(options) (WebIDL constructor) §

Defined in Accelerometer

linearGradient (markup element) §

Defined in SVG 2

Referenced in CSS Transforms 1, CSS Transforms 2

AudioParam.linearRampToValueAtTime(value, endTime) (WebIDL operation) §

Defined in Web Audio API

linearRGB (CSS value for color-interpolation-filters ) §

Defined in Filter Effects 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

GamepadPose.linearVelocity (WebIDL attribute) §

Defined in Gamepad Extensions

XRPose.linearVelocity (WebIDL attribute) §

Defined in WebXR Device API

CanvasPathDrawingStyles.lineCap (WebIDL attribute) §

Defined in HTML

CanvasPathDrawingStyles.lineDashOffset (WebIDL attribute) §

Defined in HTML

CSSFontFaceDescriptors.lineGapOverride (WebIDL attribute) §

Defined in CSS Fonts 4

FontFace.lineGapOverride (WebIDL attribute) §

Defined in CSS Font Loading 3

FontFaceDescriptors.lineGapOverride (WebIDL dictionary member) §

Defined in CSS Font Loading 3

CanvasPathDrawingStyles.lineJoin (WebIDL attribute) §

Defined in HTML

linen (concept) §

Defined in CSS Color 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Color 4

ErrorEvent.lineno (WebIDL attribute) §

Defined in HTML

ScriptingPolicyReportBody.lineno (WebIDL attribute) §

Defined in Scripting Policy

GPUCompilationMessage.lineNum (WebIDL attribute) §

Defined in WebGPU

CSPViolationReportBody.lineNumber (WebIDL attribute) §

Defined in Content Security Policy 3

DeprecationReportBody.lineNumber (WebIDL attribute) §

Defined in Deprecation Reporting

InterventionReportBody.lineNumber (WebIDL attribute) §

Defined in Intervention Reporting

PermissionsPolicyViolationReportBody.lineNumber (WebIDL attribute) §

Defined in Permissions Policy

SecurityPolicyViolationEvent.lineNumber (WebIDL attribute) §

Defined in Content Security Policy 3

SecurityPolicyViolationEventInit.lineNumber (WebIDL dictionary member) §

Defined in Content Security Policy 3

GPUCompilationMessage.linePos (WebIDL attribute) §

Defined in WebGPU

VTTRegion.lines (WebIDL attribute) §

Defined in WebVTT: The Web Video Text Tracks Format

linethickness (markup attribute for mfrac ) §

Defined in MathML Core

CanvasPath.lineTo(x, y) (WebIDL operation) §

Defined in HTML

CanvasPathDrawingStyles.lineWidth (WebIDL attribute) §

Defined in HTML

lining-nums (CSS value for font-variant-numeric ) §

Defined in CSS Fonts 4

Referenced in CSS Snapshot 2023

:link (CSS selector) §

Defined in CSS 2.2 , Selectors 3 , Selectors 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

link (markup element) §

Defined in HTML

Referenced in Client Hints Infrastructure, Loading Signed Exchanges, Web Application Manifest, Content Security Policy 3, CSS Conditional 3, HTML Accessibility API Mappings 1.0, ARIA in HTML, Image Resource, MiniApp Manifest, Referrer Policy, Resource Timing, SVG 2, WAI-ARIA, WAI-ARIA

Related terms: markup attribute as, markup attribute blocking, markup attribute charset, markup attribute color, markup attribute crossorigin, markup attribute disabled, markup attribute fetchpriority, markup attribute href, markup attribute hreflang, markup attribute imagesizes, markup attribute imagesrcset, markup attribute integrity, markup attribute media, markup attribute methods, markup attribute referrerpolicy, markup attribute rel, markup attribute rev, markup attribute sizes, markup attribute target, markup attribute title, markup attribute type, markup attribute urn

link (markup attribute for body ) §

Defined in HTML

link (markup element) §

Defined in EPUB 3.3

link (markup element) §

Defined in SVG 2

HTMLBodyElement.link (WebIDL attribute) §

Defined in HTML

<link-param> (CSS type) §

Defined in CSS Linked Parameters

link-parameters (CSS property) §

Defined in CSS Linked Parameters

Link() (algorithm for Cyclic Module Record ) §

Defined in ECMAScript

Referenced in HTML

String.link(url) (WebIDL operation) §

Defined in ECMAScript

Document.linkColor (WebIDL attribute) §

Defined in HTML

linked resource (concept) §

Defined in EPUB 3.3

LinkError (exception) §

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

links (markup element) §

Defined in EPUB 3.3

Document.links (WebIDL attribute) §

Defined in HTML

Referenced in Speculation Rules

LinkStyle (WebIDL interface) §

Defined in CSSOM

Related terms: LinkStyle.sheet

see also WebIDLPedia

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

Defined in CSS Color 4

list (markup attribute for input ) §

Defined in HTML

Referenced in HTML Accessibility API Mappings 1.0, ARIA in HTML

list (concept) §

Defined in Infra

Referenced in Console, DOM, CSS Easing Functions 2, CSS View Transitions 2, Encoding, Federated Credential Management API, Fetch, File System, HTML, Notifications API, Topics API, Navigational-Tracking Mitigations, Streams, URL, URL Pattern, Gamepad Extensions, Long Animation Frames API, Web NFC API, Web Share Target API, WebDriver BiDi, WebAssembly JavaScript Interface: Content Security Policy, WebAssembly JavaScript Interface: Exception Handling, WebAssembly JavaScript Interface: Promise Integration, WebAssembly JavaScript Interface: Type Reflection, WebAssembly JavaScript Interface: Threading, Web Bluetooth, Web IDL, Attribution Reporting, Background Fetch, Content Index, Cookie Store API, Scripting Policy, Fenced Frame, File System Access, User Agent Interaction with Related Website Sets, Get Installed Related Apps API, JS Self-Profiling API, Layout Instability, Local Font Access, Manifest Incubations, No-Vary-Search, Prefetch, Prerendering Revamped, Speculation Rules, Page Lifecycle, Measure Memory API, Web Periodic Background Synchronization, HTML Sanitizer API, Prioritized Task Scheduling, URL Fragment Text Directives, Web Serial API, Shared Storage API, Storage Buckets API, Private State Token API, Protected Audience, User-Agent Client Hints, Web App Launch Handler API, WebHID API, Loading Signed Exchanges, WebUSB API, Window Controls Overlay, Web Application Manifest, Audiobooks, Compute Pressure 1, Contact Picker API, Content Security Policy: Embedded Enforcement, Content Security Policy 3, CSS Animation Worklet API, CSS Grid Layout 1, CSS Grid Layout 2, CSS Layout API 1, CSS Painting API 1, CSS Properties and Values API 1, CSS Shadow Parts, CSS Syntax 3, CSS Transforms 2, CSS Typed OM 1, CSS View Transitions 1, CSSOM, EPUB 3.3, File API, Gamepad, Geolocation Sensor, Geolocation API, Indexed DB 3.0, JSON-LD 1.1 Processing Algorithms and API, JSON-LD 1.1 Framing, JSON-LD 1.1, Magnetometer, Media Capture and Streams, MiniApp Manifest, MiniApp Packaging, Orientation Sensor, Paint Timing, Payment Method Manifest, Payment Request API 1.1, Performance Timeline, Permissions Policy, Permissions, Proximity Sensor, Publication Manifest, RDF Dataset Canonicalization, Reporting API, Screen Wake Lock API, Server Timing, Service Workers, Verifiable Credential Data Integrity 1.0, Verifiable Credentials Data Model v2.0, WebAssembly JavaScript Interface, Web Animations, Web Locks API, Web Authentication, WebCodecs, WebGPU, Web Neural Network API, WebXR Hit Test, WebXR Device API, Window Management

Related terms: concept append, concept clone, concept contain, concept empty, concept extend, concept get the indices, concept insert, concept is empty, concept item, concept iterate, concept prepend, concept remove, concept replace, concept size, concept sort in ascending order, concept sort in descending order

list (concept for URLSearchParams ) §

Defined in URL

Referenced in Fetch

HTMLInputElement.list (WebIDL attribute) §

Defined in HTML

List (concept for ECMAScript ) §

Defined in ECMAScript

list box (concept for select ) §

Defined in HTML

list interfaces (concept) §

Defined in SVG 2

list item (concept) §

Defined in CSS Lists 3

Referenced in CSS Pseudo-Elements 4

list of elements with class names classNames (concept) §

Defined in DOM

list of elements with namespace namespace and local name localName (concept) §

Defined in DOM

list of elements with qualified name qualifiedName (concept) §

Defined in DOM

list of implemented receive codecs (concept) §

Defined in WebRTC 1.0

list of implemented send codecs (concept for RTCRtpSender ) §

Defined in WebRTC 1.0

list of pending external speculation rule resources (concept for document ) §

Defined in Speculation Rules

list of related website sets (concept) §

Defined in User Agent Interaction with Related Website Sets

list of simple selectors (concept) §

Defined in Selectors 4

list of speculation rule sets (concept for document ) §

Defined in Speculation Rules

list properties (concept) §

Defined in CSS 2.1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

list-concatenation (concept for ECMAScript ) §

Defined in ECMAScript

Referenced in Uint8Array to/from base64, ECMAScript Async Explicit Resource Management, ECMAScript Explicit Resource Management, Import Attributes, Iterator Helpers, JSON.parse source text access, Source Phase Imports, Temporal

list-item (CSS value for <display-list-item>, display property ) §

Defined in CSS Display 4

Referenced in URL Fragment Text Directives, CSS Lists 3, CSS Pseudo-Elements 4, Selectors 4

list-item (CSS value for <display-listitem>, display property ) §

Defined in CSS Display 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

list-item (CSS value for counter(), counter-increment property, counter-reset property, counter-set property, counters() function ) §

Defined in CSS Lists 3

list-item (concept) §

Defined in CSS 2.1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

list-item (CSS value for display ) §

Defined in CSS 2.2

list-style (CSS property) §

Defined in CSS Lists 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Display 4, CSS Values 5, CSS Snapshot 2022, CSS Snapshot 2023, CSS Counter Styles 3, CSS Display 3, CSS Typed OM 1

list-style-image (CSS property) §

Defined in CSS Lists 3 , CSS 2.1 , CSS 2.2

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

Related terms: CSS value none

list-style-position (CSS property) §

Defined in CSS Lists 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Cascading 3, CSS Cascading 4, CSS Cascading 5, CSS Pseudo-Elements 4, CSS Typed OM 1

Related terms: CSS value inside, CSS value outside

list-style-type (CSS property) §

Defined in CSS Lists 3 , CSS 2.1 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Counter Styles 3, CSS Images 3, CSS Scoping 1, CSS Speech 1, CSS Typed OM 1

Related terms: CSS value armenian, CSS value circle, CSS value decimal, CSS value decimal-leading-zero, CSS value disc, CSS value georgian, CSS value lower-alpha, CSS value lower-greek, CSS value lower-latin, CSS value lower-roman, CSS value none, CSS value square, CSS value upper-alpha, CSS value upper-latin, CSS value upper-roman

list-valued properties (concept) §

Defined in CSS Typed OM 1

listbox (CSS value for appearance ) §

Defined in CSS User Interface 4

listener (concept for event handler ) §

Defined in HTML

Referenced in Service Workers

BaseAudioContext.listener (WebIDL attribute) §

Defined in Web Audio API

listing (markup element) §

Defined in HTML

Referenced in MiniApp Manifest

DigitalGoodsService.listPurchaseHistory() (WebIDL operation) §

Defined in Digital Goods API

DigitalGoodsService.listPurchases() (WebIDL operation) §

Defined in Digital Goods API

SmartCardContext.listReaders() (WebIDL operation) §

Defined in Web Smart Card API

literal-punctuation (CSS value for speak-as ) §

Defined in CSS Speech 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

live (concept for ECMAScript ) §

Defined in ECMAScript

"live" (value for MediaStreamTrackState WebIDL enumeration) §

Defined in Media Capture and Streams

Referenced in MediaStream Image Capture, MediaStream Recording

live collection (concept for collection ) §

Defined in DOM

live ranges (concept) §

Defined in DOM

Referenced in CSS Custom Highlight API 1, Selection API

Live Region (concept) §

Defined in WAI-ARIA , WAI-ARIA

Math.LN10 (WebIDL attribute) §

Defined in ECMAScript

Math.LN2 (WebIDL attribute) §

Defined in ECMAScript

load (event for HTMLTrackElement ) §

Defined in HTML

load (event for HTMLElement, Window interface ) §

Defined in HTML

Referenced in Speculation Rules, Portals, Loading Signed Exchanges, WebDriver

load (event for FileReader ) §

Defined in File API

"load" (value for GPULoadOp WebIDL enumeration) §

Defined in WebGPU

load (event for XMLHttpRequest ) §

Defined in XMLHttpRequest

load event end time (concept for document load timing info ) §

Defined in HTML

load event start time (concept for document load timing info ) §

Defined in HTML

Load patch file (algorithm) §

Defined in Incremental Font Transfer

load timing info (concept for Document ) §

Defined in HTML

FontFace.load() (WebIDL operation) §

Defined in CSS Font Loading 3

HTMLMediaElement.load() (WebIDL operation) §

Defined in HTML

MediaKeySession.load() (WebIDL operation) §

Defined in Encrypted Media Extensions

FontFaceSet.load(font, text) (WebIDL operation) §

Defined in CSS Font Loading 3

Atomics.load(typedArray, index) (WebIDL operation) §

Defined in ECMAScript

LoadDocumentCallback (WebIDL callback) §

Defined in JSON-LD 1.1 Processing Algorithms and API

LoadDocumentOptions (WebIDL dictionary) §

Defined in JSON-LD 1.1 Processing Algorithms and API

Related terms: LoadDocumentOptions.extractAllScripts, LoadDocumentOptions.profile, LoadDocumentOptions.requestProfile

see also WebIDLPedia

HTMLTrackElement.LOADED (WebIDL constant) §

Defined in HTML

"loaded" (value for FontFaceLoadStatus WebIDL enumeration) §

Defined in CSS Font Loading 3

"loaded" (value for FontFaceSetLoadStatus WebIDL enumeration) §

Defined in CSS Font Loading 3

"loaded" (value for PageState WebIDL enumeration) §

Defined in MiniApp Lifecycle

FontFace.loaded (WebIDL attribute) §

Defined in CSS Font Loading 3

ProgressEvent.loaded (WebIDL attribute) §

Defined in XMLHttpRequest

Referenced in HTML

ProgressEventInit.loaded (WebIDL dictionary member) §

Defined in XMLHttpRequest

loadeddata (event for HTMLMediaElement ) §

Defined in HTML

FontFaceSet.[[LoadedFonts]] (internal slot) §

Defined in CSS Font Loading 3

loadedmetadata (event for HTMLMediaElement ) §

Defined in HTML

Referenced in Media Source Extensions™

LoadedModuleRequest Record (concept) §

Defined in Import Attributes

loadend (event for FileReader ) §

Defined in File API

loadend (event for XMLHttpRequest ) §

Defined in XMLHttpRequest

PerformanceNavigationTiming.loadEventEnd (WebIDL attribute) §

Defined in Navigation Timing 2

PerformanceTiming.loadEventEnd (WebIDL attribute) §

Defined in Navigation Timing 2

PerformanceNavigationTiming.loadEventStart (WebIDL attribute) §

Defined in Navigation Timing 2

PerformanceTiming.loadEventStart (WebIDL attribute) §

Defined in Navigation Timing 2

loading (markup attribute for img ) §

Defined in HTML

Related terms: value eager, value lazy

loading (markup attribute for iframe ) §

Defined in HTML

Related terms: value eager, value lazy

loading (markup attribute for model ) §

Defined in The <model> element

"loading" (value for FontFaceLoadStatus WebIDL enumeration) §

Defined in CSS Font Loading 3

"loading" (value for FontFaceSetLoadStatus WebIDL enumeration) §

Defined in CSS Font Loading 3

loading (event for FontFaceSet ) §

Defined in CSS Font Loading 3

HTMLIFrameElement.loading (WebIDL attribute) §

Defined in HTML

HTMLImageElement.loading (WebIDL attribute) §

Defined in HTML

FileReader.LOADING (WebIDL constant) §

Defined in File API

HTMLTrackElement.LOADING (WebIDL constant) §

Defined in HTML

XMLHttpRequest.LOADING (WebIDL constant) §

Defined in XMLHttpRequest

"loading document failed" (value for JsonLdErrorCode WebIDL enumeration) §

Defined in JSON-LD 1.1 Processing Algorithms and API

loading image (concept) §

Defined in CSS Images 3 , CSS Images 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

"loading remote context failed" (value for JsonLdErrorCode WebIDL enumeration) §

Defined in JSON-LD 1.1 Processing Algorithms and API

loadingdone (event for FontFaceSet ) §

Defined in CSS Font Loading 3

loadingerror (event for FontFaceSet ) §

Defined in CSS Font Loading 3

FontFaceSet.[[LoadingFonts]] (internal slot) §

Defined in CSS Font Loading 3

GPURenderPassColorAttachment.loadOp (WebIDL dictionary member) §

Defined in WebGPU

LoadRequestedModules(hostDefined) (algorithm for Cyclic Module Record ) §

Defined in ECMAScript

Referenced in HTML

loadstart (event for HTMLMediaElement ) §

Defined in HTML

loadstart (event for FileReader ) §

Defined in File API

loadstart (event for XMLHttpRequest ) §

Defined in XMLHttpRequest

LargestContentfulPaint.loadTime (WebIDL attribute) §

Defined in Largest Contentful Paint

PerformanceElementTiming.loadTime (WebIDL attribute) §

Defined in Element Timing API

"local" (value for IPAddressSpace WebIDL enumeration) §

Defined in Private Network Access

local (concept for IP address space ) §

Defined in Private Network Access

local (CSS value for background-attachment ) §

Defined in CSS Backgrounds 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

"local" (value for XRReferenceSpaceType WebIDL enumeration) §

Defined in WebXR Device API

Referenced in WebXR Layers API 1

RTCIceCandidatePair.local (WebIDL dictionary member) §

Defined in WebRTC 1.0

local coordinate system (concept) §

Defined in CSS Transforms 1

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

local coordinate system (concept) §

Defined in Generic Sensor API

Referenced in Accelerometer, Gyroscope, Magnetometer, Orientation Sensor

Local Date and Time (state of markup element for input ) §

Defined in HTML

local end definition (concept) §

Defined in WebDriver BiDi

local font-relative lengths (concept) §

Defined in CSS Values 4

local name (concept for Element ) §

Defined in DOM

Referenced in HTML, Prefetch, Measure Memory API, HTML Sanitizer API, CSS Scoping 1, EditContext API

local name (concept for Attr ) §

Defined in DOM

Referenced in HTML Sanitizer API, Trusted Types

local name (concept for custom element definition ) §

Defined in HTML

Referenced in DOM

local scheme (concept) §

Defined in Fetch

Referenced in HTML, Scripting Policy, Content Security Policy: Embedded Enforcement, Content Security Policy 3, Referrer Policy, Trusted Types, Web Share API, WebDriver

local time (concept) §

Defined in Internationalization Glossary

local url flag (concept for url() ) §

Defined in CSS Values 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

local url flag (concept for <url> ) §

Defined in CSS Values 4

"local-candidate" (value for RTCStatsType WebIDL enumeration) §

Defined in WebRTC Statistics

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

Defined in WebXR Device API

Referenced in WebXR Layers API 1

"local-fonts" (permission name) §

Defined in Local Font Access

Referenced in Permissions Registry, Permissions

"local-fonts" (value for PermissionPolicy WebIDL enumeration) §

Defined in Local Font Access

:local-link (CSS selector) §

Defined in Selectors 4

local-URLs-only flag (concept) §

Defined in Fetch

TCPServerSocketOpenInfo.localAddress (WebIDL dictionary member) §

Defined in Direct Sockets API

TCPSocketOpenInfo.localAddress (WebIDL dictionary member) §

Defined in Direct Sockets API

UDPSocketOpenInfo.localAddress (WebIDL dictionary member) §

Defined in Direct Sockets API

UDPSocketOptions.localAddress (WebIDL dictionary member) §

Defined in Direct Sockets API

RTCIceCandidatePairStats.localCandidateId (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCTransportStats.localCertificateId (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCPeerConnection.localDescription (WebIDL attribute) §

Defined in WebRTC 1.0

Locale (concept) §

Defined in Internationalization Glossary

SecurePaymentConfirmationRequest.locale (WebIDL dictionary member) §

Defined in Secure Payment Confirmation

Locale fallback (concept) §

Defined in Internationalization Glossary

locale neutral (concept) §

Defined in Internationalization Glossary

Locale-aware (concept) §

Defined in Internationalization Glossary

String.localeCompare(that, reserved1, reserved2) (WebIDL operation) §

Defined in ECMAScript

Referenced in ECMAScript Internationalization API

RTCRemoteInboundRtpStreamStats.localId (WebIDL dictionary member) §

Defined in WebRTC Statistics

RTCRemoteOutboundRtpStreamStats.localId (WebIDL dictionary member) §

Defined in WebRTC Statistics

localisation (concept) §

Defined in Internationalization Glossary

Localizable content (concept) §

Defined in Internationalization Glossary

Localizable text (concept) §

Defined in Internationalization Glossary

Attr.localName (WebIDL attribute) §

Defined in DOM

Element.localName (WebIDL attribute) §

Defined in DOM

TCPServerSocketOpenInfo.localPort (WebIDL dictionary member) §

Defined in Direct Sockets API

TCPServerSocketOptions.localPort (WebIDL dictionary member) §

Defined in Direct Sockets API

TCPSocketOpenInfo.localPort (WebIDL dictionary member) §

Defined in Direct Sockets API

UDPSocketOpenInfo.localPort (WebIDL dictionary member) §

Defined in Direct Sockets API

UDPSocketOptions.localPort (WebIDL dictionary member) §

Defined in Direct Sockets API

SpeechSynthesisVoice.localService (WebIDL attribute) §

Defined in Web Speech API

WindowLocalStorage.localStorage (WebIDL attribute) §

Defined in HTML

Referenced in Navigational-Tracking Mitigations, Clear Site Data, Media Capture and Streams, Presentation API

LocalTime (algorithm) §

Defined in ECMAScript

ComputedEffectTiming.localTime (WebIDL dictionary member) §

ComputedEffectTiming.localTime (WebIDL dictionary member) §

Defined in Web Animations , Web Animations 2

WorkletAnimationEffect.localTime (WebIDL attribute) §

Defined in CSS Animation Worklet API

locate a namespace (concept) §

Defined in DOM

locate a namespace prefix (concept) §

Defined in DOM

locating an entry (concept) §

Defined in File System

Referenced in File System Access

Document.location (WebIDL attribute) §

Defined in HTML

KeyboardEvent.location (WebIDL attribute) §

Defined in UI Events

KeyboardEventInit.location (WebIDL dictionary member) §

Defined in UI Events

Window.location (WebIDL attribute) §

Defined in HTML

Referenced in Navigational-Tracking Mitigations

WorkerGlobalScope.location (WebIDL attribute) §

Defined in HTML

Location (WebIDL interface) §

Defined in HTML

Referenced in URL, Web IDL, URL Fragment Text Directives, Clear Site Data, Service Workers

Related terms: Location.ancestorOrigins, Location.hash, Location.host, Location.hostname, Location.href, Location.origin, Location.pathname, Location.port, Location.protocol, Location.search, Location.assign(url), Location.reload(), Location.replace(url)

see also WebIDLPedia

location URL (concept for response ) §

Defined in Fetch

Referenced in HTML, Prefetch

Window.locationbar (WebIDL attribute) §

Defined in HTML

Landmark.locations (WebIDL dictionary member) §

Defined in Accelerated Shape Detection in Images

locator (concept for FileSystemHandle ) §

Defined in File System

Referenced in File System Access

lock (concept) §

Defined in HTML

Lock (WebIDL interface) §

Defined in Web Locks API

Related terms: Lock.mode, Lock.name

see also WebIDLPedia

lock() (concept for Keyboard ) §

Defined in Keyboard Lock

ScreenOrientation.lock() (WebIDL operation) §

Defined in Screen Orientation

Referenced in Prerendering Revamped

Keyboard.lock(keyCodes) (WebIDL operation) §

Defined in Keyboard Lock

Referenced in Prerendering Revamped

locked (concept for ReadableStream ) §

Defined in Streams

Referenced in Fetch, Service Workers, WebCodecs, WebTransport

"locked" (value for ScreenIdleState WebIDL enumeration) §

Defined in Idle Detection API

ReadableStream.locked (WebIDL attribute) §

Defined in Streams

WritableStream.locked (WebIDL attribute) §

Defined in Streams

LockGrantedCallback (WebIDL callback) §

Defined in Web Locks API

LockInfo (WebIDL dictionary) §

Defined in Web Locks API

Related terms: LockInfo.clientId, LockInfo.mode, LockInfo.name

see also WebIDLPedia

LockManager (WebIDL interface) §

Defined in Web Locks API

Related terms: LockManager.query(), LockManager.request(name, callback), LockManager.request(name, options, callback)

see also WebIDLPedia

LockManagerSnapshot (WebIDL dictionary) §

Defined in Web Locks API

Related terms: LockManagerSnapshot.held, LockManagerSnapshot.pending

see also WebIDLPedia

LockMode (WebIDL enumeration) §

Defined in Web Locks API

Related terms: value exclusive, value shared

see also WebIDLPedia

LockOptions (WebIDL dictionary) §

Defined in Web Locks API

Related terms: LockOptions.ifAvailable, LockOptions.mode, LockOptions.signal, LockOptions.steal

see also WebIDLPedia

NavigatorLocks.locks (WebIDL attribute) §

Defined in Web Locks API

GPUSamplerDescriptor.lodMaxClamp (WebIDL dictionary member) §

Defined in WebGPU

GPUSamplerDescriptor.lodMinClamp (WebIDL dictionary member) §

Defined in WebGPU

log (concept for modules ) §

Defined in WebDriver BiDi

console.log(...data) (WebIDL operation) §

Defined in Console

log() (CSS function) §

Defined in CSS Values 4

MLGraphBuilder.log(input) (WebIDL operation) §

Defined in Web Neural Network API

Math.log(x) (WebIDL operation) §

Defined in ECMAScript

Math.log10(x) (WebIDL operation) §

Defined in ECMAScript

Math.LOG10E (WebIDL attribute) §

Defined in ECMAScript

Math.log1p(x) (WebIDL operation) §

Defined in ECMAScript

Math.log2(x) (WebIDL operation) §

Defined in ECMAScript

Math.LOG2E (WebIDL attribute) §

Defined in ECMAScript

"logged-in" (value for LoginStatus WebIDL enumeration) §

Defined in Federated Credential Management API

"logged-out" (value for LoginStatus WebIDL enumeration) §

Defined in Federated Credential Management API

Logger (algorithm) §

Defined in Console

Logic layer (concept for Document ) §

Defined in MiniApp Lifecycle

logical (CSS value for border-color, border-style property, border-width property, margin, padding property ) §

Defined in CSS Logical Properties 1

logical display surface (concept) §

Defined in Screen Capture

logical expression (concept) §

Defined in RDF 1.2 Concepts and Abstract Syntax

logical height (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Fragmentation 4, CSS Inline Layout 3

Logical miplevel-specific texture extent (algorithm) §

Defined in WebGPU

Logical order (concept) §

Defined in Internationalization Glossary

logical property group (concept) §

Defined in CSS Logical Properties 1

Referenced in CSS Backgrounds 4, CSS Borders and Box Decorations 4, CSS Scroll Snap 2, CSS Animations 2, CSS Backgrounds 3, CSS Box Model 3, CSS Box Model 4, CSS Cascading 4, CSS Cascading 5, CSS Logical Properties 1, CSS Overflow 3, CSS Overflow 4, CSS Overscroll Behavior 1, CSS Positioned Layout 3, CSS Scroll Snap 1, CSS Sizing 3, CSS Sizing 4, CSSOM

logical width (concept) §

Defined in CSS Writing Modes 3 , CSS Writing Modes 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Box Model 4, CSS Inline Layout 3, CSS Text 3, CSS Text 4

HIDReportItem.logicalMaximum (WebIDL dictionary member) §

Defined in WebHID API

HIDReportItem.logicalMinimum (WebIDL dictionary member) §

Defined in WebHID API

logicalSurface (concept) §

Defined in Screen Capture

MediaTrackCapabilities.logicalSurface (WebIDL dictionary member) §

Defined in Screen Capture

MediaTrackConstraintSet.logicalSurface (WebIDL dictionary member) §

Defined in Screen Capture

MediaTrackSettings.logicalSurface (WebIDL dictionary member) §

Defined in Screen Capture

MediaTrackSupportedConstraints.logicalSurface (WebIDL dictionary member) §

Defined in Screen Capture

Navigator.login (WebIDL attribute) §

Defined in Federated Credential Management API

IdentityProviderAccount.login_hints (WebIDL dictionary member) §

Defined in Federated Credential Management API

IdentityProviderAPIConfig.login_url (WebIDL dictionary member) §

Defined in Federated Credential Management API

IdentityProviderRequestOptions.loginHint (WebIDL dictionary member) §

Defined in Federated Credential Management API

LoginStatus (WebIDL enumeration) §

Defined in Federated Credential Management API

Related terms: value logged-in, value logged-out

see also WebIDLPedia

long (WebIDL interface) §

Defined in Web IDL

Referenced in HTML, Captured Mouse Events, Protected Audience, WebHID API, CSS Custom Highlight API 1, CSS Typed OM 1, CSSOM View, Gamepad, Geolocation API, JSON-LD 1.1 Processing Algorithms and API, JSON-LD 1.1 Framing, JSON-LD 1.1, Permissions Policy, Picture-in-Picture, Pointer Events, Remote Playback API, Touch Events, Trusted Types, UI Events, Web Audio API, Web Authentication, WebCodecs, WebGPU, Web Neural Network API, Identity for WebRTC 1.0, WebRTC Statistics, WebRTC 1.0, WebXR Device API, Window Management, DNT

see also WebIDLPedia

long animation frame (concept) §

Defined in Long Animation Frames API

long long (WebIDL interface) §

Defined in Web IDL

Referenced in Long Animation Frames API, Protected Audience, File API, Web Authentication, WebCodecs, WebRTC Encoded Transform, WebRTC Statistics, WebTransport

see also WebIDLPedia

Long task (concept) §

Defined in Long Tasks API

Referenced in Long Animation Frames API

longdesc (markup attribute for iframe ) §

Defined in HTML

longdesc (markup attribute for img ) §

Defined in HTML

HTMLFrameElement.longDesc (WebIDL attribute) §

Defined in HTML

HTMLIFrameElement.longDesc (WebIDL attribute) §

Defined in HTML

HTMLImageElement.longDesc (WebIDL attribute) §

Defined in HTML

longer (concept) §

Defined in CSS Color 4

longhand (concept) §

Defined in CSS Cascading 3 , CSS Cascading 4 , CSS Cascading 5

Referenced in CSS Variables 2, CSS Snapshot 2022, CSS Snapshot 2023, CSS Animations 2, CSS Box Model 4, CSS Containment 3, CSS Grid Layout 1, CSS Grid Layout 2, CSS Inline Layout 3, CSS Logical Properties 1, CSS Overflow 4, CSS Positioned Layout 3, CSS Scroll Snap 1, CSS Text 4, CSS Text Decoration 4, CSS User Interface 4, CSS Variables 1, Scroll-driven Animations, Web Animations

GeolocationCoordinates.longitude (WebIDL attribute) §

Defined in Geolocation API

GeolocationSensor.longitude (WebIDL attribute) §

Defined in Geolocation Sensor

GeolocationSensorReading.longitude (WebIDL dictionary member) §

Defined in Geolocation Sensor

look up a custom element definition (concept) §

Defined in HTML

Referenced in DOM

Lookup Race Response (concept) §

Defined in Service Workers

Node.lookupNamespaceURI(prefix) (WebIDL operation) §

Defined in DOM

XPathNSResolver.lookupNamespaceURI(prefix) (WebIDL operation) §

Defined in DOM

Node.lookupPrefix(namespace) (WebIDL operation) §

Defined in DOM

loop (markup attribute for audio, video element ) §

Defined in HTML

Referenced in HTML Accessibility API Mappings 1.0

loop (markup attribute for marquee ) §

Defined in HTML

loop (markup attribute for model ) §

Defined in The <model> element

AudioBufferSourceNode.loop (WebIDL attribute) §

Defined in Web Audio API

AudioBufferSourceOptions.loop (WebIDL dictionary member) §

Defined in Web Audio API

HTMLMarqueeElement.loop (WebIDL attribute) §

Defined in HTML

HTMLMediaElement.loop (WebIDL attribute) §

Defined in HTML

Referenced in Media Capture and Streams, Open Screen Protocol

LoopContinues (algorithm) §

Defined in ECMAScript

Referenced in ECMAScript Async Explicit Resource Management, ECMAScript Explicit Resource Management

AudioBufferSourceNode.loopEnd (WebIDL attribute) §

Defined in Web Audio API

AudioBufferSourceOptions.loopEnd (WebIDL dictionary member) §

Defined in Web Audio API

AudioBufferSourceNode.loopStart (WebIDL attribute) §

Defined in Web Audio API

AudioBufferSourceOptions.loopStart (WebIDL dictionary member) §

Defined in Web Audio API

loose (CSS value for line-break ) §

Defined in CSS Text 3 , CSS Text 4

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

GPUDevice.lost (WebIDL attribute) §

Defined in WebGPU

WebTransportDatagramStats.lostOutgoing (WebIDL dictionary member) §

Defined in WebTransport

lostpointercapture (event for GlobalEventHandlers ) §

Defined in Pointer Events

loud (CSS value for voice-volume ) §

Defined in CSS Speech 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

"low" (value for RequestPriority WebIDL enumeration) §

Defined in Fetch

low (value for fetchpriority attribute of img element, fetchpriority attribute of link element, fetchpriority attribute of script ) §

Defined in HTML

low (markup attribute for meter ) §

Defined in HTML

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

"low" (value for ImageSmoothingQuality WebIDL enumeration) §

Defined in HTML

"low" (value for ResizeQuality WebIDL enumeration) §

Defined in HTML

"low" (value for XRMeshQuality WebIDL enumeration) §

Defined in WebXR Meshing API 1

low (CSS value for voice-pitch ) §

Defined in CSS Speech 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

low (CSS value for voice-range ) §

Defined in CSS Speech 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

"low" (value for RTCPriorityType WebIDL enumeration) §

Defined in WebRTC Priority Control API

HTMLMeterElement.low (WebIDL attribute) §

Defined in HTML

low-entropy hint table (concept) §

Defined in Client Hints Infrastructure

Referenced in User-Agent Client Hints

"low-latency" (value for WebTransportCongestionControl WebIDL enumeration) §

Defined in WebTransport

"low-power" (value for GPUPowerPreference WebIDL enumeration) §

Defined in WebGPU

"low-power" (value for MLPowerPreference WebIDL enumeration) §

Defined in Web Neural Network API

low-surrogate code unit (concept for ECMAScript ) §

Defined in ECMAScript

"lowdelay" (value for OpusApplication WebIDL enumeration) §

Defined in Opus WebCodecs Registration

CSSMathClamp.lower (WebIDL attribute) §

Defined in CSS Typed OM 1

IDBKeyRange.lower (WebIDL attribute) §

Defined in Indexed DB 3.0

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

Defined in CSS Counter Styles 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Speech 1

lower-alpha (CSS value for list-style-type ) §

Defined in CSS 2.2

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

Defined in CSS Counter Styles 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

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

Defined in CSS Counter Styles 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Speech 1

lower-greek (CSS value) §

Defined in CSS 2.1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

lower-greek (CSS value for list-style-type ) §

Defined in CSS 2.2

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

Defined in CSS Counter Styles 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Speech 1

lower-latin (CSS value) §

Defined in CSS 2.1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

lower-latin (CSS value for list-style-type ) §

Defined in CSS 2.2

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

Defined in CSS Counter Styles 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023, CSS Speech 1

lower-roman (CSS value) §

Defined in CSS 2.1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

lower-roman (CSS value for list-style-type ) §

Defined in CSS 2.2

IDBKeyRange.lowerBound(lower, open) (WebIDL operation) §

Defined in Indexed DB 3.0

lowercase (CSS value for text-transform ) §

Defined in CSS Text 3 , CSS Text 4 , CSS 2.2

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

lowercase letter (concept) §

Defined in CSS Syntax 3

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

IDBKeyRange.lowerOpen (WebIDL attribute) §

Defined in Indexed DB 3.0

XREquirectLayer.lowerVerticalAngle (WebIDL attribute) §

Defined in WebXR Layers API 1

XREquirectLayerInit.lowerVerticalAngle (WebIDL dictionary member) §

Defined in WebXR Layers API 1

XRMediaEquirectLayerInit.lowerVerticalAngle (WebIDL dictionary member) §

Defined in WebXR Layers API 1

"lowpass" (value for BiquadFilterType WebIDL enumeration) §

Defined in Web Audio API

"lowshelf" (value for BiquadFilterType WebIDL enumeration) §

Defined in Web Audio API

lowsrc (markup attribute for img ) §

Defined in HTML

HTMLImageElement.lowsrc (WebIDL attribute) §

Defined in HTML

"lr" (value for DirectionSetting WebIDL enumeration) §

Defined in WebVTT: The Web Video Text Tracks Format

lspace (markup attribute for mo ) §

Defined in MathML Core

lspace (markup attribute for mpadded ) §

Defined in MathML Core

MLGraphBuilder.lstm(input, weight, recurrentWeight, steps, hiddenSize, options) (WebIDL operation) §

Defined in Web Neural Network API

MLGraphBuilder.lstmCell(input, weight, recurrentWeight, hiddenState, cellState, hiddenSize, options) (WebIDL operation) §

Defined in Web Neural Network API

ltr (value for dir attribute of html-global ) §

Defined in HTML

"ltr" (value for CanvasDirection WebIDL enumeration) §

Defined in HTML

"ltr" (value for NotificationDirection WebIDL enumeration) §

Defined in Notifications API

ltr (CSS value for direction ) §

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

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

"ltr" (value for TextDirection WebIDL enumeration) §

Defined in MiniApp Lifecycle

luminance (concept) §

Defined in CSS Color 4

Referenced in CSS Color HDR 1

luminance (CSS value for mask-mode ) §

Defined in CSS Masking 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

luminance (CSS value for mask-border-mode ) §

Defined in CSS Masking 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

luminance (CSS value for mask-type ) §

Defined in CSS Masking 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

"luminance-alpha" (value for XRDepthDataFormat WebIDL enumeration) §

Defined in WebXR Depth Sensing

luminanceToAlpha (value for type ) §

Defined in Filter Effects 1

luminosity (CSS value for <blend-mode> ) §

Defined in Compositing 2 , Compositing 1

Referenced in CSS Snapshot 2022, CSS Snapshot 2023

lvb (CSS value for <length> ) §

Defined in CSS Values 4

lvb(value) (WebIDL operation for CSS ) §

Defined in CSS Typed OM 1

lvh (CSS value for <length> ) §

Defined in CSS Values 4

lvh(value) (WebIDL operation for CSS ) §

Defined in CSS Typed OM 1

lvi (CSS value for <length> ) §

Defined in CSS Values 4

lvi(value) (WebIDL operation for CSS ) §

Defined in CSS Typed OM 1

lvmax (CSS value for <length> ) §

Defined in CSS Values 4

lvmax(value) (WebIDL operation for CSS ) §

Defined in CSS Typed OM 1

lvmin (CSS value for <length> ) §

Defined in CSS Values 4

lvmin(value) (WebIDL operation for CSS ) §

Defined in CSS Typed OM 1

lvw (CSS value for <length> ) §

Defined in CSS Values 4

lvw(value) (WebIDL operation for CSS ) §

Defined in CSS Typed OM 1