.box {width: 100%;height: 100%;margin: 0px auto;position: relative;display: none;background-color: #111a47}
.box img{width:100%;height: 100%;}
.ad_time {background: #000;filter: alpha(opacity=50);opacity: 0.5;padding: 5px;position: absolute;top: 0;left: 0;color: #fff;}
.ad_time span {font-weight: bold;color: #cc0;padding:0 5px;}
.close {width: 49px;height: 20px; no-repeat;position: absolute;top: 0;right: 0;cursor: pointer;}