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<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="utf-8" />
<title>test</title>
<meta name="author" content="Joy Du(椋橀浂闆鹃洦), dooyoe@gmail.com" />
<meta name="copyright" content="www.doyoe.com" />
<style>
html,body{margin:0;padding:0;}
html{_padding:20px;}
body{height:100%;}
.test{position:absolute;top:20px;right:20px;bottom:20px;left:20px;_position:static;_width:100%;_height:100%;background:#ddd;}
</style>
</head>
<body>
<div class="test">璺漺indow涓婂彸涓嬪乏鍚?0px</div>
</body>
</html>
<html>
<head>
<style type="text/css">
*{
margin:0;
padding:0;
border:0;
}
#d{
background:#ccc;
position:absolute;
top:20px;
left:20px;
right:20px;
bottom:20px;
}
</style>
</head>
<body>
<div id="d"></div>
</body>
</html>
<html>
<head></head>
<body style="margin:0;padding:0">
<div id="testDiv" style="background-color:#ccc;position:relative"></div>
</body>
</html>
<script>
function setDiv(){
var oDiv=document.getElementById('testDiv');
var height = document.documentElement.offsetHeight;
var width = document.documentElement.offsetWidth;
oDiv.style.left=20+'px';
oDiv.style.top=20+'px';
oDiv.style.width= (width-40)+'px'
oDiv.style.height= (height-40)+'px'
}
window.onload=setDiv;
window.onresize=setDiv;
</script>