position-fixed

    
    html{
    _background:url(about:blank); /* 阻止闪动 in IE6 , 把空文件换成about:blank , 减少请求 */
    }
    /* 你的图层 */
    .positionFixedLayer{
    position:fixed;
    _position: absolute;
    _top:expression(documentElement.scrollTop+documentElement.clientHeight-this.offsetHeight);
    _left:expression(documentElement.scrollLeft+documentElement.clientWidth-this.offsetWidth-200);
    }

Published by wkylin 05 September 2011