interface dom.CSSNamespaceRule
implements CSSRule
import { type dom } from "https://deno.land/x/evt@v2.3.1/lib/types/index.ts";
const { CSSNamespaceRule } = dom;
An object representing a single CSS @namespace at-rule. It implements the CSSRule interface, with a type value of 10 (CSSRule.NAMESPACE_RULE).