<style>
#qqbox{
110px;
height:140px;
position:fixed !important;
position:absolute;
z-index:100;
top:expression(offsetParent.scrollTop+(document.documentElement.clientHeight-140)+"px");
right:0px;
bottom:0px;
}
</style>
<div id="qqbox">sdfasdfsad</div>