.roll-wrap{
    position: relative;
    width: 910px;
    height: 510px;
    display: block;
    overflow: hidden;
}
.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;
}
.roll_row .roll__list li{
    float: left;
    display: block;
    width: 910px !important;
    height: 510px !important;
}
.roll_row .roll__list li img{
    display: block;
    width: 910px !important;
    height: 510px !important;
}
.control{
    position: absolute;
    top: 210px;
	width:30px;
	height:60px;
	text-align:center;
	line-height:60px;
	font-size:30px;
    text-decoration: none;
    color: #07c2d3;
    background-color: rgba(221, 221, 221, .8);
}
.control.pre{
    left: 0px;
}
.control.next{
    right: 0px;
}
.roll_col{
    width: 100%;
    height: 200px;
    overflow: hidden;
}
.roll_col .roll__list{
    width: 100%;
}
.h600{
    height: 600px;
}
.roll_col li{
    display: block;
    height: 200px;
    line-height: 200px;
    font-size: 30px;
    font-weight: bold;
    text-align: center;
    color: #fff;
    background-color: #ff9900;
}
.roll_col .li-2{
    background-color: #0099ff;
}
.roll_col .li-3{
    background-color: #ff0099;
}
.roll_col .li-4{
    background-color: #00ff99;
}
.roll_col .control{
    top: 80px;
}