ladybird/Userland/Libraries/LibWeb/CSS/CSSGroupingRule.idl

#import <CSS/CSSRule.idl>
#import <CSS/CSSRuleList.idl>

interface CSSGroupingRule : CSSRule {
    [SameObject] readonly attribute CSSRuleList cssRules;
    unsigned long insertRule(CSSOMString rule, optional unsigned long index = 0);
    undefined deleteRule(unsigned long index);
};