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		1d825f17c0
		
	
	
	
	
		
			
			While this isn't explicitly mentioned in the specification, there is a WPT test that checks for this behavior.
		
			
				
	
	
		
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			1.1 KiB
		
	
	
	
		
			Text
		
	
	
	
	
	
			
		
		
	
	
			29 lines
		
	
	
	
		
			1.1 KiB
		
	
	
	
		
			Text
		
	
	
	
	
	
| #import <CSS/CSSRule.idl>
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| #import <CSS/CSSRuleList.idl>
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| #import <CSS/MediaList.idl>
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| #import <CSS/StyleSheet.idl>
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| 
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| // https://drafts.csswg.org/cssom/#cssstylesheet
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| [Exposed=Window]
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| interface CSSStyleSheet : StyleSheet {
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|     constructor(optional CSSStyleSheetInit options = {});
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| 
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|     readonly attribute CSSRule? ownerRule;
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|     [SameObject] readonly attribute CSSRuleList cssRules;
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|     unsigned long insertRule(CSSOMString rule, optional unsigned long index = 0);
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|     undefined deleteRule(unsigned long index);
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| 
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|     Promise<CSSStyleSheet> replace(USVString text);
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|     undefined replaceSync(USVString text);
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| 
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|     // https://drafts.csswg.org/cssom/#legacy-css-style-sheet-members
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|     [SameObject, ImplementedAs=css_rules] readonly attribute CSSRuleList rules;
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|     long addRule(optional DOMString selector = "undefined", optional DOMString style = "undefined", optional unsigned long index);
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|     undefined removeRule(optional unsigned long index);
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| };
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| 
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| dictionary CSSStyleSheetInit {
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|     DOMString baseURL = null;
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|     (MediaList or DOMString) media = "";
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|     boolean disabled = false;
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| };
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