<!-- #手机浏览器兼容性设置 -->
<meta content="application/xhtml+xml;charset=UTF-8" http-equiv="Content-Type">
<meta content="no-cache,must-revalidate" http-equiv="Cache-Control">
<meta content="no-cache" http-equiv="pragma">
<meta content="0" http-equiv="expires">
<meta content="telephone=no, address=no" name="format-detection">
<meta content="width=device-width, initial-scale=1.0" name="viewport">
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<!-- #手机浏览器兼容性设置 -->
粘贴到顶部后和原来的meta标签对齐.
可以实现响应式布局.