//rem.js文件
export default (function (doc, win) {
var docEl = doc.documentElement,
resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
recalc = function () {
var clientWidth = docEl.clientWidth;
if (!clientWidth) return;
docEl.style.fontSize = 20 * (clientWidth / 1200) + 'px';
console.log(docEl.style.fontSize)
};
if (!doc.addEventListener) return;
win.addEventListener(resizeEvt, recalc, false);
// doc.addEventListener('DOMContentLoaded', recalc, false);
})(document, window);
//调用
import rem from './js/rem.js';
document.documentElement.style.fontSize = 20 * (document.documentElement.clientWidth / 1200) + 'px';
rem