.orderForm{text-align:center;margin:auto;position:relative;min-height:calc(100vh - 60px)}.orderForm .nav{width:100%;height:60px;background:#fff;overflow:hidden;border:1px solid #d0d0d0}.orderForm .nav>div{width:600px;line-height:60px;margin:auto;font-weight:400}.orderForm .nav>div span{color:#9d9d9d;font-size:14px;cursor:pointer}.orderForm .nav>div .spanUp{color:#000!important}