$ npm install -g create-react-app
$ create-react-app [プロジェクト名] $ cd [プロジェクト名] $ npm start
$ rm -rf src/*
$ webpack-dev-server
$ webpack-dev-server --progress --colors
$ npm install --save-dev css-loader postcss-loader postcss-easy-import extract-text-webpack-plugin
const webpack = require('webpack'); : module: { loaders: [ { test: /\.css$/, loader: ExtractTextPlugin.extract( 'css-loader!postcss-loader' ), }, : plugins: [ new webpack.LoaderOptionsPlugin({ options: { postcss: [ require('autoprefixer')({ browsers: ['last 2 versions'] }) ] } }), ],