判断PC还是移动
if(/AppleWebKit.Mobile/i.test(navigator.userAgent) || (/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD|DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia|SonyEricsson|SIE-|Amoi|ZTE/.test(navigator.userAgent))){
if(window.location.href.indexOf("?mobile")<0){
try{
if(/Android|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)){
手机
}else if(/iPad/i.test(navigator.userAgent)){
}else{
pc
}
}catch(e){}
}
}
单位转换：
<script>
(function (doc, win) {
var docEl = doc.documentElement,
resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize',
recalc = function () {
var clientWidth = docEl.clientWidth;
if (!clientWidth) return;
if(clientWidth>=1080){
docEl.style.fontSize = '100px';
}else{
docEl.style.fontSize = 100 (clientWidth / 1080) + 'px';
}
};

if (!doc.addEventListener) return; win.addEventListener(resizeEvt, recalc, false); doc.addEventListener('DOMContentLoaded', recalc, false);})(document, window);

</script>
if(clientWidth>=1080) 设计稿宽度是多少就换成多少 现在是1080px下，如果是750就携成750

移动端圆角
input,textarea{-webkit-appearance:none; border-radius:0; /去除input默认样式/}