WebIDLpedia

Definition

CSS Object Model (CSSOM) defines CSSRule

[Exposed=Window]
interface CSSRule {
  attribute CSSOMString cssText;
  readonly attribute CSSRule? parentRule;
  readonly attribute CSSStyleSheet? parentStyleSheet;

  // the following attribute and constants are historical
  readonly attribute unsigned short type;
  const unsigned short STYLE_RULE = 1;
  const unsigned short CHARSET_RULE = 2;
  const unsigned short IMPORT_RULE = 3;
  const unsigned short MEDIA_RULE = 4;
  const unsigned short FONT_FACE_RULE = 5;
  const unsigned short PAGE_RULE = 6;
  const unsigned short MARGIN_RULE = 9;
  const unsigned short NAMESPACE_RULE = 10;
};

This interface is extended in the following specifications:

• CSS Animations Level 1

  
  
  partial interface CSSRule {
      const unsigned short KEYFRAMES_RULE = 7;
      const unsigned short KEYFRAME_RULE = 8;
  };

• CSS Conditional Rules Module Level 3

  partial interface CSSRule {
      const unsigned short SUPPORTS_RULE = 12;
  };

• CSS Counter Styles Level 3

  partial interface CSSRule {
      const unsigned short COUNTER_STYLE_RULE = 11;
  };

• CSS Fonts Module Level 4

  
  
  partial interface CSSRule {  const unsigned short FONT_FEATURE_VALUES_RULE = 14;
  };

[Exposed=Window]
interface CSSRule {
  attribute CSSOMString cssText;
  readonly attribute CSSRule? parentRule;
  readonly attribute CSSStyleSheet? parentStyleSheet;

  // the following attribute and constants are historical
  readonly attribute unsigned short type;
  const unsigned short STYLE_RULE = 1;
  const unsigned short CHARSET_RULE = 2;
  const unsigned short IMPORT_RULE = 3;
  const unsigned short MEDIA_RULE = 4;
  const unsigned short FONT_FACE_RULE = 5;
  const unsigned short PAGE_RULE = 6;
  const unsigned short MARGIN_RULE = 9;
  const unsigned short NAMESPACE_RULE = 10;
    const unsigned short KEYFRAMES_RULE = 7;
    const unsigned short KEYFRAME_RULE = 8;
    const unsigned short SUPPORTS_RULE = 12;
    const unsigned short COUNTER_STYLE_RULE = 11;  const unsigned short FONT_FEATURE_VALUES_RULE = 14;
};

Methods and attributes that return objects implementing CSSRule

• CSSStyleSheet.ownerRule
• CSSRuleList.item()
• CSSRule.parentRule
• CSSStyleDeclaration.parentRule

Referring IDL interfaces/dictionaries

• CSSColorProfileRule
• CSSCounterStyleRule
• CSSFontFaceRule
• CSSFontFeatureValuesRule
• CSSFontPaletteValuesRule
• CSSGroupingRule
• CSSImportRule
• CSSKeyframeRule
• CSSKeyframesRule
• CSSLayerStatementRule
• CSSMarginRule
• CSSNamespaceRule
• CSSNestedDeclarations
• CSSPositionTryRule
• CSSPropertyRule
• CSSRule
• CSSRuleList
• CSSStyleDeclaration
• CSSStyleSheet
• CSSViewTransitionRule

Referring specifications

• CSS Anchor Positioning refers to CSSRule
• CSS Animations Level 1 refers to CSSRule
• CSS Cascading and Inheritance Level 5 refers to CSSRule
• CSS Color Module Level 5 refers to CSSRule
• CSS Conditional Rules Module Level 3 refers to CSSRule
• CSS Counter Styles Level 3 refers to CSSRule
• CSS Fonts Module Level 4 refers to CSSRule
• CSS Nesting Module refers to CSSRule
• CSS Properties and Values API Level 1 refers to CSSRule
• CSS View Transitions Module Level 2 refers to CSSRule