interface CSSNamespaceRule
implements CSSRule
import { type CSSNamespaceRule } from "https://deno.land/x/windmill@v1.397.0/node_modules/evt/lib/types/lib.dom.d.ts";
An object representing a single CSS @namespace at-rule. It implements the CSSRule interface, with a type value of 10 (CSSRule.NAMESPACE_RULE).