ï»?
body{background:#000000}
.float_mask{position: fixed;z-index: 19999;display:none;width: 100%;right: 0; bottom: 0;height: 105px;_bottom: auto;_width: 100%;_position: absolute;
_top: expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0)));}
.float_layer{position: absolute;left: 0;top: 0;z-index: 1;width: 100%;height: 100%;background: #9999CC;filter: alpha(opacity=80);opacity: 0.80;}
.float_content{ position: relative;z-index: 2;width: 1920px;height: 100%;margin: 0 auto;padding-left: 0px;}
.float_bg, .float_close{ float: left;}
.float_bg{position: relative;width: 1920px;height: 100px;margin-top: 0px;}
.float_slogan {position: absolute; background: url("../images/footer_ad.png") 0 0 no-repeat;}
.float_slogan{left: 0;bottom: 0;width: 1920px;height: 100px;cursor: pointer;}