webpack.config.js

var path = require('path');
var webpack = require('webpack');

module.exports = {
    entry: './app/app.js',
    output: {
        path: path.resolve(__dirname, 'www'),
        filename: 'app.bundle.js'
    },
    module: {
        rules: [
                {
                    test: /\.js$/,
                    loader: 'babel-loader',
                    query: {
                        presets: ['es2015', 'react']
                    }
                },
                {
                  test: /\.css$/,
                  loader: 'style-loader'
                }, {
                  test: /\.css$/,
                  loader: 'css-loader',
                  query: {
                    modules: true,
                    localIdentName: '[name]__[local]___[hash:base64:5]'
                  }
                }        ]
    },
    stats: {
        colors: true
    },
    devtool: 'source-map',
    performance: {
        hints: false
    }
};