webpack.config.js

var HtmlWebPackPlugin = require('html-webpack-plugin');

var htmlWebPackPlugin = new HtmlWebPackPlugin({
    template: './src/index.html',
    filename: './index.html'
})

module.exports = {
    module: {
        rules: [
            {
                test: /\.jsx|\.js$/,
                exclude: /node_modules/,
                use: {
                    loader: 'babel-loader'
                }
            },
            {
                test: /\.css$/,
                use: [
                    'style-loader',
                    'css-loader'
                ]
            },
        ]
    },
    resolve: {
        extensions: ['.js', '.jsx', 'css'],
    },
    plugins: [
        htmlWebPackPlugin
    ]
}