手机端转换rem适应

话不多说，请看代码：

<script> (function() { var changeRem = function() { document.getElementsByTagName('html')[0].style.fontSize = document.documentElement.clientWidth / 20 + 'px'; }; changeRem(); var t; window.addEventListener('resize', function() { clearTimeout(t); t = setTimeout(changeRem, 300); }, false); window.addEventListener('pageshow', function(e) { if (e.persisted) { clearTimeout(t); t = setTimeout(changeRem, 300); } }, false); }()); </script>