An error occurred when import css files.

my webpack.config.js
`
{
   test: /\.css$/,
   use: ['style-loader', 'css-loader']
}
`
index.css 
`
body{
  background-color: #f4f4f4;
}
`

in the index.js

`
import './style/index.css'
`

and Chrome give this error

`Uncaught SyntaxError: missing ) after argument list`

but when i use 'webpack' in git bash it work correct, the body background become #f4f4f4.
