const autoprefixer = require('autoprefixer'); const pxtorem = require('postcss-pxtorem'); module.exports = ({ file }) => { let remUnit if (file && file.dirname && file.dirname.indexOf('vant') > -1) { remUnit = 37.5 } else { remUnit = 75 } return { plugins: [ autoprefixer(), pxtorem({ rootValue: remUnit, propList: ['*'], selectorBlackList: ['van-circle__layer'] }) ] } }