js clientWidth,scrollWidth,offsetWidth,clientLe...

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
	<title></title>
	<script type="text/javascript" src='http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js'></script>
	<style type="text/css">
		*{margin:0; padding:0}
		#aaa{width:300px; height:300px; padding:20px;margin:40px; overflow:scroll; background:blue;border:10px solid red}
	</style>
</head>
<body>

	
<div id="aaa">
pppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
</div>

<script type="text/javascript">
	var aaa = document.getElementById('aaa');
	alert(aaa.clientWidth);   //width + padding -滚动条宽度
	alert(aaa.scrollWidth); //width + padding + 隐藏滚动内容的宽度 -滚动条宽度 ;
	alert(aaa.offsetWidth);  //width + padding + border
	alert(aaa.clientLeft);   //边框的厚度	
	alert(aaa.scrollLeft);   //滚动条的位置
	alert(aaa.offsetLeft);   //边框到左侧的距离
</script>


</body>
</html>

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