webpack 引入css-loader 应对多入口的问题

var path = require('path');
var webpack = require('webpack');
module.exports = {
entry :{
"index": "./src/index/main.js",   //前台JS
"admin": "./src/admin/main.js"   //后台JS
},
output: {
path: path.resolve(__dirname, './dist'),
publicPath: '/dist/',
filename: '[name].js'
},
module: {
rules: [
{
test: /\.vue$/,
loader: 'vue-loader',
options: {
// vue-loader options go here
}
},
{
test: /\.js$/,
loader: 'babel-loader',
exclude: /node_modules/
},
{
test: /\.css$/,
loader: 'style-loader!css-loader?root=../'
},
{
test: /\.(eot|svg|ttf|woff|woff2)$/,
loader: 'file-loader'
},
{
test: /\.(png|jpe?g|gif|svg)(\?\S*)?$/,
loader: 'file-loader',
options: {
name: '[name].[ext]?[hash]'
}
}
]
},
resolve: {
alias: {
'vue$': 'vue/dist/vue',
}
},
devServer: {
historyApiFallback: true,
noInfo: true
},
plugins: [
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
}
})
]
};

if (process.env.NODE_ENV === 'production') {
module.exports.devtool = '#source-map';
// http://vue-loader.vuejs.org/en/workflow/production.html module.exports.plugins = (module.exports.plugins || []).concat([
new webpack.DefinePlugin({
'process.env': {
NODE_ENV: '"production"'
}
}),
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
}
}),
new webpack.LoaderOptionsPlugin({
minimize: true
})
])
}

当webpack设置多入口且入口不在二级目录的时候（例如"./src/index/main.js"）,css-loader则必须设置root 指向上一级目录即为../

暂时只能统一设置，当多入口不在同级目录有什么解决方式还未找到