.banner .row .row .left img{margin-left:-15px;position:absolute;top:-340px}.banner .row .col-lg-10 .row .right ul{top:-340px;position:absolute;margin-right:-15px;right:0}.banner .row .col-lg-10 .row .right ul li{font-size:19px;padding:0 20px;float:left}.banner .row .col-lg-10 .row .right ul li a{color:#fff;text-decoration:none}.banner .row .col-lg-10 .row .right ul li a:hover{border-bottom:3px solid blue}.banner #xiangxia{cursor:pointer;color:#fff}.sub-menu-item{display:none;width:160px;background-color:#fff;position:absolute;top:-310px;right:240px}.sub-menu-item li{text-align:center;padding:10px 0}.sub-menu-item li a{text-decoration:none;color:black;font-size:15px}.sub-menu-item li a:hover{color:orangered}.certificate-content .iso{margin-top:100px}