class DOM.CSSRuleList |
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The CSSRuleList interface provides the abstraction of an ordered collection of CSS rules.
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Internal not part of the DOM |
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Used to retrieve a CSS rule by ordinal index. The order in this collection represents the order of the rules in the CSS style sheet.
index - Index into the collection Returns The style rule at the index position in the CSSRuleList , or null if that is not a valid index.
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The number of CSSRule s in the list. The range of valid child rule indices is 0 to length-1 inclusive.
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