*{margin:0; padding: 0;}
ul{list-style: none;}
.wuyou-waiter{position: fixed; left: 20%; top:70%; margin-top: -90px;  z-index: 999;}
.waiter-ul li{position: relative; height: 200px; line-height: 200px; }
.waiter-ul li a{ position: absolute; left: 0; top: 0; z-index: 2; display: block; width: 200px; height: 200px; line-height: 50px; text-align: center; text-decoration: none; font-size: 24px;}
.waiter-ul li.wuyou-contact a{background-image: url("/images/xiaochengxu.jpg");  background-repeat: no-repeat; background-size: 180px;}
.waiter-ul li.wuyou-contact .waiter-title{background-color:#00b7ee; }
.waiter-ul li.wuyou-contact .waiter-title:before{background-color:#00b7ee; }