vue-cli项目中使用rem

npm install px2rem-loader  lib-flexible --save

import ‘lib-flexible/flexible.js‘

// 新增这段代码
const px2remLoader = {
loader: ‘px2rem-loader‘,
options: {
remUnit: 37.5
}
}

function generateLoaders (loader, loaderOptions) {
const loaders = [cssLoader, px2remLoader]    // 修改这里
if (loader) {
loaders.push({
loader: loader + ‘-loader‘,
options: Object.assign({}, loaderOptions, {
sourceMap: options.sourceMap
})
})
}