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覆盖层的css +jquery
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>6yang 覆盖层的css +jquery</title>
</head>
<style type="text/css">
body{ background-color:#fff; margin:0; padding:0; }
#overlay01{
background-color:#333;
height:100%;
left:0;
position:absolute;
top:0;
width:100%;
opacity:0.7;
filter:alpha(opacity=80);
z-index:10000;
}
#text{
width:100%;
background:#f38;
z-index:1002;
position:absolute;
}
</style>
<script src="js/jquery-1.3.2.min.js" type="text/javascript"></script>
<script>
jQuery(function($){
//solute Cover layer Background
var jQObj = $("#overlay01");
var coverHeight = $(document).height();
$(window).load(function(){
minHeightHack(jQObj, coverHeight);
$(window).resize(function(){
minHeightHack(jQObj, coverHeight);
});
});
});
function minHeightHack(jQObj, coverHeight){
jQObj.css("height",coverHeight);
$("#text").css("height",coverHeight-500);
}
</script>
<body>
<div id="overlay01">your Content</div>
<div id="text">your up Content</div>
</body>
</html>