webpack.config.js

const HtmlWebpackPlugin = require('html-webpack-plugin');
const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CssMinimizerPlugin = require("css-minimizer-webpack-plugin");


module.exports = {
    mode: "development",
    optimization: {
        minimize: true,
        minimizer: [
            new CssMinimizerPlugin(),
        ],
    },
    output: {
        path: path.resolve(__dirname, './dist'),
        filename: 'main.js',
        clean: true,
    },
    module: {
        rules: [
            {
                test: /\.css$/,
                exclude: /styles\.css$/,
                use: [
                    "style-loader",
                    "css-loader"
                ]

            },
            {
                test: /styles\.css$/,
                use: [
                    MiniCssExtractPlugin.loader,
                    "css-loader"
                ]

            },
            {
                test: /\.html$/,
                loader: "html-loader",
                options: {
                    minimize: false,
                },
            },
            {
                test: /\.(png|jpe?g|gif|svg)$/i,
                loader: 'file-loader',
                options: {
                    name: 'img/[name].[ext]',
                },
            },
        ]
    },
    plugins: [
        new HtmlWebpackPlugin({  // Also generate a test.html
            template: './src/index.html',
            filename: './index.html'
        }),
        new MiniCssExtractPlugin({
            filename: '[name].css',
            ignoreOrder: false
        })
    ]
}