.citys-span{position:relative;height:27px;
line-height:27px;display:inline-block;width:auto; border:1px solid #E8E8E8;font-size: 14px;
border-radius:5px;padding:0 0 0 8px;cursor:pointer;background:white;margin-right:9px;}
.citys-span span{display:inline-block;height:27px;line-height:27px;padding-right:30px;position:relative;width: auto;}
.citys-span span:after{content:"";display:block;width:20px;height:27px;
position:absolute;right:0;top:0;background-image:url(jt_nor.png);
background-repeat:no-repeat;background-position:0 center;background-size:10px auto;}
 
.citys-span ul{width:100%;max-height:200px;border-radius:0 0 5px 5px;position:absolute;
border:1px solid #E8E8E8;background:white;left:-1px;top:25px;border-top:0;
margin-bottom:10px;display:none;z-index:10;overflow-y: auto;}
.citys-span ul li{width:100%;float:left;overflow:hidden;border-top:1px solid #E8E8E8;}
.citys-span ul li:first-child{border-top:0;}
.citys-span ul li a{display:block;height:27px;line-height:27px;padding:0 4px;color:#494949;}