#floatBoxBg{width:100%;height:100%;background:#000;filter:alpha(opacity=50);opacity:0.5;position:absolute;top:0;left:0;}
.floatBox{border:#666 5px solid;width:300px;position:absolute;top:50px;left:40%;}
.floatBox .title{height:23px;padding:7px 10px 0;background:#333;color:#fff;}
.floatBox .title h4{float:left;padding:0;margin:0;font-size:14px;line-height:16px;}
.floatBox .title span{float:right;cursor:pointer;}
.floatBox .content{padding:10px 5px;background:#fff;}