优化

package.json

@@ -80,6 +80,7 @@
     "babel-plugin-import": "^1.13.0",
     "chalk": "2.4.2",
     "connect": "3.6.6",
+    "css-loader": "^3.6.0",
     "eslint": "5.15.3",
     "eslint-plugin-vue": "5.2.2",
     "html-webpack-plugin": "3.2.0",