<!DOCTYPE HTML>
<html>
<head>
<meta charset="gb2312" />
<title></title>
<style>
body {
height:2000px;
}
div {
position:absolute; right:40px; top:40px;
width:90%; height:30px;
background:#ddd;
}
</style>
</head>
<body>
<div id="test">111111111</div>
<script>
function toolbar(el){
el = typeof el == 'string' ? document.getElementById(el) : el;
var elTop = el.offsetTop;
var sTop = 0;
window.onscroll = function(){
sTop = document.body.scrollTop || document.documentElement.scrollTop;
if( sTop > elTop ){
el.style.top = sTop + 'px';
}else{
el.style.top = elTop + 'px';
}
}
}
toolbar('test');
</script>
</body>
</html>
导航条与滚动条之间关系用例（类似天猫）
猜你喜欢
转载自forlab.iteye.com/blog/1728242
今日推荐
周排行