手机端网页适配，一般设计稿宽750，根据设计稿适配。
页面头部一般会加这些meta
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="wap-font-scale" content="no">
<meta name="viewport" content="width=device-width, minimum-scale=1, maximum-scale=1,user-scalable=no">
<meta name="apple-mobile-web-app-capable" content="yes" />
<!-- 忽略页面中的数字识别为电话号码,email识别 -->
<meta name="format-detection"content="telephone=no, email=no" />
<!-- 启用360浏览器的极速模式(webkit) -->
<meta name="renderer" content="webkit">
<!-- 避免IE使用兼容模式（这个适合加在PC） -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<!-- 针对手持设备优化，主要是针对一些老的不识别viewport的浏览器，比如黑莓 -->
<meta name="HandheldFriendly" content="true">
<!-- uc强制竖屏 -->
<meta name="screen-orientation" content="portrait">
<!-- QQ强制竖屏 -->
<meta name="x5-orientation" content="portrait">
<!-- UC强制全屏 -->
<meta name="full-screen" content="yes">
<!-- QQ强制全屏 -->
<meta name="x5-fullscreen" content="true">
<!-- UC应用模式 -->
<meta name="browsermode" content="application">
<script type="text/javascript">
(function(d,c){
var e=d.documentElement,
a="orientationchange" in window?"orientationchange":"resize",
b=function(){
var f=e.clientWidth;
if(!f){return}
if(f>=750){
e.style.fontSize="100px"
}else{
e.style.fontSize=100*(f/750)+"px"
}
};
if(!d.addEventListener){return}
b();
c.addEventListener(a,b,false);
d.addEventListener("DOMContentLoaded",b,false)
}
)(document,window);
</script>
