@mapcss/config/esm/core/preprocess.js

Definition of MapCSS config, loader

import { toAST } from "./deps.js";
export function createInjectCSS(css) {
    return {
        name: "mapcss/inject-css-statement",
        fn: (root) => {
            const cssRoot = toAST(css);
            root.prepend(cssRoot);
            return root;
        },
    };
}