#YouKuVideo{position:fixed; bottom:0px; width:300px; height:270px; display:none;border: 1px solid rgb(45, 145, 205); } * html #YouKuVideo {position:absolute; bottom:auto; top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0))-0);}
