modify:
 yesterday I found that it is useless to configure css option in vue-loader, and it is useless to further configure js:babel,eslint after cannot extract css 
. My definition of useless is that it cannot be run in ie11 
 I have already configured .babelrc 
 because I started to configure webpack myself when I was in webpack4, and vue-loader also uses the latest 15 
, so I don"t know why. I don"t know if it"s my own problem or something else 
//vue-loader
{
      test: /\.vue$/,
      loader: "vue-loader",
      options: {
        loaders: {
          js: "babel-loader!eslint-loader"
        }
      }
    }//babelrc
{
  "presets": [
    ["env", {
      "modules": false,
      "targets": {
        "browsers": ["> 1%", "last 2 versions", "not ie <= 8"]
      }
    }],
    "stage-2"
  ]
}-5-14 split line-
 1. I refer to the example on the official website  vue-loader to extract css,. Style  
 1.1 found that this configuration does not use the content that does not recognize style 
 
1.2 
 
 2.1 
 I guess it is because the vue-loader document was webpack2 
, so I assigned it again. Refer to the webpakc official website  webpack plugin  
 test: /\.css$/,
        use: ExtractTextPlugin.extract({
          fallback: "style-loader",
          use: "css-loader"
        }) so that style can be extracted 
 but I want to know why 1 can"t and if I mismatched it. 
