body,div,ul,li{margin:0;padding:0;}
ul{list-style:none;}
img{border:0;}

.banner{margin:0 auto ;width:70%;overflow:hidden;}
.large_box{margin-bottom:10px;overflow:hidden;width: 100%;}
.large_box img{display:block;}
.small_box{width:100%;height:100%;overflow:hidden;}
.small_list{position:relative;float:left;width:92%;overflow:hidden;}
.small_list ul{height:100%;overflow:hidden;width: 5000px}
.small_list ul li{position:relative;float:left;margin-right:10px;width:289px;}
.small_list ul li img{display:block;width: 100%}
.small_list ul li .bun_bg{display:none;position:absolute;top:0;left:0;width:100%;height:100%;background:#000;filter:alpha(opacity=60);-moz-opacity:0.6;-khtml-opacity:0.6;opacity:0.6;}
.small_list ul li.on .bun_bg{display:block;}
.btn{display:block;width:3%;height:100px;background-color:#777;background-repeat:no-repeat;background-position:center center;cursor:pointer;}
.btn:hover{background-color:#2B4356;}
.left_btn{float:left;margin-right:1%;background-image:url(../../../Uploads/left_btn.png);}
.right_btn{float:right;background-image:url(../../../Uploads/right_btn.png);    margin-left: 1%;}