方法一:
1.加载px2rem-loader依赖包
npm install px2rem-loader
2.自定义js文件:
window.onload = function (){
getRem(1920,100)
}
function getRem (pWidth,pRem){
let html = document.getElementsByTagName('html')[0]
let oWidth = document.body.clientWidth || document.documentElement.clientWidth
html.style.fontSize = oWidth / pWidth * pRem + 'px'
}
3.在main.js中引用
import './assets/js/rem'
4.在build/utils的cssLoaders中添加px2remLoader:
const px2remLoader = {
loader: 'px2rem-loader',
options: {
remUnit: 100
}
};
const loaders = options.usePostCSS ? [cssLoader, postcssLoader, px2remLoader] : [cssLoader, px2remLoader]
方法二:
1.安装依赖
npm install px2rem-loader -D
npm install lib-flexible -S
2.在main.js引用
import 'lib-flexible'
3.在build/utils的cssLoaders中添加px2remLoader:
const px2remLoader = {
loader: 'px2rem-loader',
options: {
remUnit: 192, //根据视觉稿,rem为px的十分之一,1920px 192 rem
// remPrecision: 8//换算的rem保留几位小数点
}
}
//放进loaders数组中
function generateLoaders (loader, loaderOptions) {
const loaders = options.usePostCSS ? [cssLoader, postcssLoader, px2remLoader] : [cssLoader, px2remLoader]
if (loader) {
loaders.push({
loader: loader + '-loader',
options: Object.assign({}, loaderOptions, {
sourceMap: options.sourceMap
})
})
}
//...
}
4.修改flexible.js
node_moudles/lib-flexible/flexible.js 修改:
function refreshRem(){
var width = docEl.getBoundingClientRect().width;
if (width / dpr > 540) {
width = width * dpr;
}
//缩放比例,可按实际情况修改
var rem = width / 8;
docEl.style.fontSize = rem + 'px';
flexible.rem = win.rem = rem;
}