.flexslider{width: 100%;overflow: hidden;position: relative;}
.flexslider ul:first-child li{width: 100%;overflow: hidden;position: relative;float:left}
.flexslider ul:first-child li img{width: 100%;height: 100%;}

.flexslider ol.flex-control-nav{position: absolute;bottom: 0;right: 0;z-index: 9999;max-width: 130px;}
.flexslider ol.flex-control-nav li{display: inline-block;width: 8px;height: 8px;overflow: hidden;margin-right: 5px;}
.flexslider ol.flex-control-nav li a{display: block;width: 100%;height: 100%;overflow: hidden;background: #aaa;text-indent: -9999px;cursor: pointer;}
.flexslider ol.flex-control-nav li a.flex-active{background: #F49E0C;}

.flexslider ul.flex-direction-nav li a{display: block;width: 55px;height: 80px;position: absolute;top: 50%;margin-top: -40px;z-index: 99;background: url("./ban_btn.png") no-repeat;}
.flexslider ul.flex-direction-nav li a.flex-prev{background-position: 0 0;left: 0;}
.flexslider ul.flex-direction-nav li a.flex-next{background-position: 0 bottom;right: 0;}
.flexslider ul.flex-direction-nav li a.flex-prev:hover{background-position: -55px 0;}
.flexslider ul.flex-direction-nav li a.flex-next:hover{background-position: -55px -80px;}