webpack.config.js

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

module.exports = {

   entry: {
     app: './src/app.js'
   },

   output: {
     filename: 'bundle.js',
     path: path.resolve('dist'),
   },

   devtool: 'cheap-module-source-map',

   module: {
     loaders: [       
       { test: /\.js$/, loader: 'babel' },
       { test: /\.s?css$/, loader: 'style!css!sass' },
     ],
   },

   plugins: [
     new HtmlWebpackPlugin({
       template: path.resolve('src','index.html')
     })
   ]
};