<!-- <!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"> 遨游、火狐浏览器就用这个吧-->
<!DOCTYPE>
<<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题</title>
</head>
<body>
</body>
</html>
<head>
<meta charset="UTF-8">
<title>随滚动条滚动的居中div</title>
<script type="text/javascript">
function scrollBox(){
document.getElementById("centerBox").style.top=(document.documentElement.scrollTop+
(document.documentElement.clientHeight-document.getElementById("centerBox").offsetHeight)/2)+"px";
document.getElementById("centerBox").style.left=(document.documentElement.scrollLeft+
(document.documentElement.clientWidth-document.getElementById("centerBox").offsetWidth)/2)+"px";
}
window.onload=function(){
scrollBox();
}
window.onscroll=function(){
scrollBox();
}
// function test(){
// scrollBox();
// }
// window.onscroll=test;//注意别写成onScroll,JS是区分大小写的，我就因为写错了，搞了半天效果都没出来
// window.onload=test;//注意别写成onLoad
</script>
</head>
<body>
<div style="400px; height:400px; border:1px solid #f1f1f1; background-color:red; position:absolute;
top:0px; left:0px;" id="centerBox"></div>
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</body>
</html>
PS：QMM亲自动手做的，自己做的总有成就感！