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CSS CSSRule rules.item(index) rules[index] rules CSSRuleList CSSStylesheet.cssRules index 0 CSS rules.length
.insertRule() .deleteRule() CSSRuleList CSSStyleSheet ** stylesheet.cssRules
// CSS
var first_rule = document.styleSheets[0].cssRules[0];
CSS CSSOM CSSRuleList
| CSS Object Model (CSSOM) # the-cssrulelist-interface |
CSSRuleListCSSCSSConditionRuleCSSFontFeatureValuesMapCSSFontFeatureValuesRuleCSSFontPaletteValuesRuleCSSFunctionDeclarationsCSSFunctionDescriptorsCSSFunctionRuleCSSGroupingRuleCSSImportRuleCSSKeyframeRuleCSSKeyframesRuleCSSLayerBlockRuleCSSLayerStatementRuleCSSMediaRuleCSSNamespaceRuleCSSPageDescriptorsCSSPageRuleCSSPropertyRuleCSSRuleCSSStartingStyleRuleCSSStyleDeclarationCSSStylePropertiesCSSStyleRuleCSSStyleSheetCSSSupportsRuleCaretPositionMediaListMediaQueryListScreenStyleSheetStyleSheetList| Web Proxy Viewer | New URL | Original Page |