// 引入工具和插件
const Postcss = require("postcss");
const Autoprefixer = require("autoprefixer");


// 设置插件
const processor = Postcss([Autoprefixer]);

// 处理css
const css = `
.box{
    transform: scale(0.5);
}
`;

processor.process(css, { from: undefined }).then(result => {
  result.warnings().forEach(warn => {
    console.warn(warn.toString());
  });

  console.log(result.css);
});

/*
输出:
.box{
    -webkit-transform: scale(0.5);
            transform: scale(0.5);
}
*/