.yh_wb{position: relative;float: left;margin-left:68px;}
.navfr .yh_wb>.nav_bg{width:99px;height:85px;display:inline-block;background:url("../image/nav_bac.png") no-repeat;position:absolute;left:99px;top:-8px;z-index:11;}
.yh_wb .on a{color: #fff;}