rem移动端适配
window.onload = function(){ getRem(750,100) }; window.onresize = function(){ getRem(750,100) }; function getRem(pwidth,prem){ var html = document.getElementsByTagName("html")[0]; var oWidth = document.body.clientWidth || document.documentElement.clientWidth; html.style.fontSize = oWidth/pwidth*prem + "px"; }