1. 安装：复制拷贝文件
cnpm install postcss-loader autoprefixer --save-dev
2. webpack.config.js中使用
???????rules: [ ???????????//配置css加载器 ???????????{ ???????????????test: /\.css$/, ???????????????use: cssExtract.extract({ ???????????????????fallback: "style-loader", ???????????????????use: ["css-loader", "postcss-loader"] ???????????????}) ???????????}, ???????????//配置sass加载器 ???????????{ ???????????????test: /\.scss$/, ???????????????use: sassExtract.extract({ ???????????????????fallback: ‘style-loader‘, ???????????????????use: [‘css-loader‘, "postcss-loader", ‘sass-loader‘] ???????????????}) ???????????}, ???????]3. 创建一个postcss.config.js文件，并配置如下
module.exports = { ???plugins: [ ???????require(‘autoprefixer‘) ???]}webpack.config.js====CSS相关：：：postcss-loader加载器，自动添加前缀
原文地址：https://www.cnblogs.com/songxia/p/10295795.html