interface CSSGroupingRule implements CSSRuleimport { type CSSGroupingRule } from "https://deno.land/x/windmill@v1.364.2/node_modules/evt/lib/types/lib.dom.d.ts"; Any CSS at-rule that contains other rules nested within it. PropertiesreadonlycssRules: CSSRuleListMethodsdeleteRule(index: number): voidinsertRule(rule: string, index: number): number