.roll-wrap:hover .control{display:block}
.roll-wrap{position:relative;width:1030px;;padding-right:20px;height:66px;}
.roll-wrap-son{position:relative;width:1035px;overflow:hidden;height:66px;}
.roll-wrap .roll__list{}.roll_row .roll__list::before,.roll_row .roll__list::after{content:"";display:table;line-height:0}
.roll_row .roll__list::after{clear:both}
.roll_row .roll__list{width:9999px;padding-left:40px;padding-right:30px;margin-top:21px;;}
.roll_row .roll__list li{
    float:left;
    display:inline-block;
    margin-right:20px;
    font-weight:700;font-size:18px;text-align:center;color:#fff;background-color:#e6f1ff;
padding:0px 10px;
border-radius:3px;
}
    .roll_row .roll__list li a{color:#c52d32;font-size:18px;}
.control{
    position:absolute;top:30px;
    padding:10px 5px;
    width:11px;
    height:17px;
    top:15px;
    }
    .control.pre{left:5px;background:url("../images/left-arrow.png")  center no-repeat;}
    .control.next{right:-6px;background:url("../images/right-arrow.png")  center no-repeat;}
    .roll_col{width:100%;height:200px;overflow:hidden}
    .roll_col .roll__list{width:100%}
    .roll_col li{display:inline-block;
        line-height:28px;
        font-size:24px;
        text-align:center;
        color:#c52d32;
        background-color:#e6f1ff;
    }
.roll_col .li-2{background-color:#09f}.roll_col .li-3{background-color:#f09}
.roll_col .li-4{background-color:#0f9}.roll_col .control{top:80px}