1.头部
<meta http-equiv="Content-Type" content="text/html" charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
2.代码
<script type="text/javascript">
(function(doc, win) {
var docEl = doc.documentElement,
resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
recalc = function() {
var clientWidth = docEl.clientWidth;
if(!clientWidth) return;
if(clientWidth > 768) {
docEl.style.fontSize = '40px';
return;
}
docEl.style.fontSize = 20 * (clientWidth / 375) + 'px';
};
if(!doc.addEventListener) return;
win.addEventListener(resizeEvt, recalc, false);
doc.addEventListener('DOMContentLoaded', recalc, false);
})(document, window);
</script>
3.设计稿采用750*1206,css采用less写,统一除以40转换为rem即可。