Fix autoprefix

package.json

@@ -72,6 +72,7 @@
     "warning": "~2.1.0"
   },
   "devDependencies": {
+    "autoprefixer": "^6.3.3",
     "babel-cli": "^6.2.0",
     "babel-core": "^6.2.1",
     "babel-jest": "^6.0.1",

webpack.config.js

@@ -2,6 +2,7 @@ var webpack = require('webpack');
 var ExtractTextPlugin = require("extract-text-webpack-plugin");
 var path = require('path');
 var pkg = require('./package');
+var autoprefixer = require('autoprefixer');
 
 var entry = {};
 entry['demo'] = ['./scripts/demo.js', 'webpack-hot-middleware/client'];
@@ -53,6 +54,8 @@ module.exports = {
     }]
   },
 
+  postcss: [autoprefixer],
+
   plugins: [
     new ExtractTextPlugin('[name].css'),
     new webpack.optimize.OccurenceOrderPlugin(),