ative;} .br2 .tc .nav2{width: 1200px;color: #555;margin: 0 auto; background:#fff;} .br2 .tc .nav2 .nbox{width:1200px; padding:1px 0 20px;} .br2 .tc .nav2 .nbox li{ width:121px; height:40px;line-height: 40px; margin:8px 6px; background:#f3f3f3; float:left;color: #666;position: relative;font-size: 14px; text-align:center;} .br2 .tc .nav2 .nbox li a{ padding:10px 54px; color: #666; text-align:center;} .br2 .tc .nav2 .nbox li:hover,.br2 .tc .nav2 .nbox .on{ background:#1b5395; color:#fff;font-weight: bold;} .br2 .tc .nav2 .nbox li:hover a,.br2 .tc .nav2 .nbox .on a{ background:#1b5395; color:#fff;font-weight: bold;} .br2 .tc .nav2 .nbox a:hover img,.br2 .tc .nav2 .nbox a.on img{ display:block;} .br2 .tc .ny_about{ width:1280px; min-height:350px; padding-bottom:150px; line-height:28px;} .br2 .tc .ny_about img{ max-width:1030px;} .clear{ clear:both;} .un_box{overflow:hidden; margin-top:30px;}