.banner{
    /*width: 1020px;*/
    width: 100%;
    height: 245px;
    float: right;
    position: relative;
    overflow: hidden;
}
.banner-btn{
    position: absolute;
    bottom: 20px;
    left: 50%;
    width: 180px;
    margin-left: -90px;
}
#pic{
    width: 500%;
    /*width: 100%;*/
    transition: all 1s;
}
#pic li{
    float: left;
}
#pic li a img{
    /*width:573px ;*/
    width:362px ;
    /*width:100%;*/
    /*height:270px;*/
    height: 235px;
}
.banner-btn li{
    width: 12px;
    height: 12px;
    background-color: #eee;
    border-radius: 50%;
    float: left;
    margin-right: 20px;
    cursor: pointer;
}
.banner-btn .on{
    background-color: #B41E23;
    border: 2px solid #eee;
}