.banner{height: 180px;}
        .banner .tb-btn{
            right: 2px;
            bottom: 2px;
        }
        .banner .tb-btn a{
            margin: 0 2px;
            height: 5px;
            width: 5px;
        }
        .banner li{
            position: relative;
        }
        .banner li img{
            width: 100%;
            height: 180px;
        }
        .banner li p{
            position: absolute;
            left: 0px;
            right: 0px;
            bottom: 0px;
            height: 24px;
            font-size: 12px;
            line-height: 24px;
            padding-left: 8px;
            padding-right: 40px;
            overflow:hidden; 
            white-space:nowrap; 
            text-overflow:ellipsis;
            -ms-text-overflow: ellipsis;
            -o-text-overflow: ellipsis;
            background: rgba(0, 0, 0, 0.5);
            color: #fff
        }