refined-youtube/webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');

module.exports = {
  entry: "./src/index.js",
  output: {
    path: path.resolve(__dirname, "ext"),
    filename: "index.js",
  },
  mode: "production",
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              publicPath: (resourcePath, context) => {
                return path.relative(path.dirname(resourcePath), context) + '/';
              },
            },
          },
          'css-loader',
        ],
      },
    ]
  },
  plugins: [
    new MiniCssExtractPlugin({ filename: 'style.css' }),
  ],
};