import { postcss } from "https://deno.land/x/deno_bundler@v0.9.1/deps.ts";
const { Container } = postcss;
Removes node from the container and cleans the parent properties from the node and its children.
rule.nodes.length //=> 5
rule.removeChild(decl)
rule.nodes.length //=> 4
decl.parent //=> undefined