webpack.config.js

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

module.exports = {
  plugins: [
    new MiniCssExtractPlugin(),
    new CopyWebpackPlugin({
      patterns: [{ from: 'public' }],
    }),
  ],
  module: {
    rules: [
      {
        test: /\.js$/,
        use: { loader: 'babel-loader' },
        exclude: /node_modules/,
      },
      {
        test: /\.(css|scss|sass|less)$/i,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'sass-loader',
          // 'less-loader',
          'postcss-loader',
        ],
      },
      {
        test: /\.(png|svg|jpg|gif)$/,
        use: ['file-loader'],
      },
      {
        test: /\.(woff|woff2|eot|ttf|otf)$/,
        use: ['file-loader'],
      },
    ],
  },
  mode: 'development',
  target: 'web',
  devtool: 'source-map',
  devServer: {
    static: {
      directory: path.join(__dirname, 'public'),
    },
  },
};