module.exports = { plugins: { autoprefixer: { overrideBrowserslist: [ 'Android 4.1', 'iOS 7.1', 'Chrome > 31', 'ff > 31', 'ie >= 8', 'last 10 versions', ], grid: true, }, 'postcss-pxtorem': { rootValue: 37.5, propList: ['*'], unitPrecision: 5, }, }, }