今天学习了一下QQ邮箱的网页整体缩放效果，原来实现方法很简单，代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1, user-scalable=no">
<title>测试页面</title>
<style type="text/css">
div {
width: 600px;
text-align: center;
font-size: 4em;
color: #333;
}
</style>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.11.0.js"></script>
<script type="text/javascript">
$(function() {
var r = document.body.offsetWidth / window.screen.availWidth;
$(document.body).css("-webkit-transform","scale(" + r + ")");
});
$(window).resize(function() {
var r = document.body.offsetWidth / window.screen.availWidth;
$(document.body).css("-webkit-transform","scale(" + r + ")");
});
</script>
</head>
<body>
<div>改变窗口大小试试，你会发现什么？</div>
</body>
</html>