webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');

module.exports = {
    entry: './src/index.js',
    output: {
        path: path.resolve(__dirname, 'dist'),
        filename: 'main.js'
    },
    resolve: {
        extensions: ['.js']
    },
    module: {
        rules: [{
            test: /\.js?$/,
            exclude: /node_modules/,
            use: {
                loader: 'babel-loader'
            }
        }]
    },
    plugins: [
        new HtmlWebpackPlugin({
            inject: true,
            template: './public/index.html',
            filename: './index.html'
        }),
        new CopyWebpackPlugin({
            patterns: [{
                from: './src/styles/styles.css',
                to: ''
            }],
        })
    ]
}