大家好:
我想获取浏览器的实际高度,但我对W3C DTD HTML 4.01和//W3C//DTC XHTML 1.0有些困惑,以下是我的问题细节:
如果我在页面头部使用W3C DTD HTML 4.01,并使用document.body.clientHeight,那么我无法获取浏览器的完整高度:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test jQuery Height</title>
<script type="text/javascript" src="../lib/jquery-1.8.3.min.js"></script>
<script type="text/javascript">
$(function(){
var height=document.body.clientHeight;
alert(height);
})
</script>
</head>
<body>
<div style="margin-left:30px;">
<button>Start Select</button>
<button>Stop Select7lt;/button>
</div>
</body>
</html>
但是如果我改变为//W3C//DTD HTML 4.01或使用document.documentElement.clientHeight,那么我可以得到浏览器的实际高度:
1. 使用//W3C//DTD HTML 4.01
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test jQuery Height</title>
<script type="text/javascript" src="../lib/jquery-1.8.3.min.js"></script>
<script type="text/javascript">
$(function(){
var height=document.body.clientHeight;
alert(height);
})
</script>
</head>
<body>
<div style="margin-left:30px;">
<button>Start Select</button>
<button>Stop Select7lt;/button>
</div>
</body>
</html>
使用 document.documentElement.clientHeight
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test jQuery Height</title>
<script type="text/javascript" src="../lib/jquery-1.8.3.min.js">
</script>
<script type="text/javascript">
$(function(){
var height=document.documentElement.clientHeight;
alert(height);
})
</script>
</head>
<body>
<div style="margin-left:30px;">
<button>Start Select</button>
<button>Stop Select7lt;/button>
</div>
</body>
</html>
所以,我的问题是//W3C//DTD HTML 4.01和//W3C//DTD XHTML 1.0有什么区别?
非常感谢您的帮助!
<!DOCTYPE html>
是一个不错的主意。 - Chris Morgan