body,div,ul,li{
    margin:0;
    padding:0
}
.large_box ul{
    list-style:none
}
img{
    border:0
}
.banner{
    margin:0px auto 0;
    width:696px;
    overflow:hidden
}
.large_box{
    margin-bottom:10px;
    width:696px;
    height:395px;
    overflow:hidden
}
.large_box img{
    display:block
}
.small_box{
    width:696px;
    height:80px;
    overflow:hidden
}
.small_list{
    position:relative;
    float:left;
    width:600px;
    height:80px;
    overflow:hidden
}
.small_list ul{
    height:80px;
    overflow:hidden
}
.small_list ul li{
    position:relative;
    float:left;
    margin-right:10px;
    width:142px;
    padding: 0 19px;
}
.small_list ul li img{
    display:block
}
.small_list ul li .bun_bg{
    display:none;
    position:absolute;
    top:0;
    left:0;
    width:110px;
    height:80px;
    background:#000;
    filter:alpha(opacity=60);
    -moz-opacity:.6;
    -khtml-opacity:.6;
    opacity:.6
}
.small_list ul li.on .bun_bg{
    display:block
}
.btn{
    display:block;
    width:20px;
    height:80px;
    background-color:#777;
    background-repeat:no-repeat;
    background-position:center center;
    cursor:pointer
}
.btn:hover{
    background-color:#e7000e
}
.left_btn{
    float:left;
    margin-right:10px;
    background-image:url(left_btn.png)
}
.right_btn{
    float:right;
    background-image:url(right_btn.png)
}