.foot-nav{position:fixed;z-index:999;bottom:0;width:100%;max-width:640px;min-width:320px;background:#333}.foot-nav .nav li{float:left;width:25%;text-transform:uppercase;border-right:1px solid #666;box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box}.foot-nav .nav li em{display:block;width:50%;margin:0 auto}.foot-nav .nav li span{display:block;padding:5px 0 0 0}.foot-nav .nav li img{width:100%;display:block}.foot-nav .nav a{color:#fff;line-height:2.2rem;display:block;text-align:center;font-size:1.3rem;position:relative}.foot-nav .nav a:hover,.foot-nav .nav a:active{background:#333}.foot-nav .nav li:nth-child(1){background:#ff6800;border:0}.foot-nav .nav li:last-child{border:0}@media screen and (min-width:768px){.foot-nav{display:none}}