安装postcss-loader

npm install --save-dev postcss-loader

配置webpack.config.js

{
  test:/\.css$/,
  use:[
    ‘style-loader‘,
    ‘css-loader?importLoaders=1‘,
    ‘postcss-loader‘
  ]
}

一种办法是配置postcss.config.js

module.exports = {
    plugins: [
        require(‘autoprefixer‘)({
          /* ...options */
        })
    ]
}

第二张办法是webpack.config.js使用LoaderOptionsPlugin

module.exports = {
    plugins: [
        new webpack.LoaderOptionsPlugin({
            options: {
                postcss: function(){
                    return [
                        require("autoprefixer")({
                            browsers: [‘ie>=8‘,‘>1% in CN‘]
                        })
                    ]
                }
            }
        })
    ]
}

webpack2.0配置postcss-loader

原文：https://www.cnblogs.com/qiqi715/p/9339204.html