body,
ul{
    margin: 0;
    padding: 0;
}
ul{
    list-style: none;
}
p{
    margin-top: 40px;
}
.container{
    margin: 0 auto;
    width: 940px;
}
.roll-wrap:hover .control{
    display: block;
}

.roll-wrap{
    position: relative;
    width: 100%;
    height: 420px;
    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;
    margin-right: 20px;
    width: 300px;
    height: 400px;
    
    font-weight: bold;
    font-size: 30px;
    text-align: center;
    color: #fff;
    
}

.roll_row .roll__list li a {
	display: block;
}

.roll_row .roll__list li .div {
	margin: 0 auto;
}

.roll_row .roll__list li .div .img {
	width: 100%;
	height: 350px;
	overflow: hidden;
	display: flex;
	align-items: center;
	justify-content: center;
}

.roll_row .roll__list li .div .img img {
	height: 350px;
	margin: 0 auto;
}

.roll_row .roll__list li .div .title {
	wdith: 100%;
	height: 60px;
	line-height: 60px;
	text-align: center;
	background-color: #f2f2f3;
	margin-top: 10px;
        font-size: 16px;
        overflow: hidden;
}

.roll_row .roll__list li .div .thover {
	background-color: #e6bd65;
}

.roll_row .roll__list li .div .ihover {
	box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.3);
}


.control{
    position: absolute;
    top: 30px;
    display: none;
    padding: 10px 5px;
    font-weight: bold;
    text-decoration: none;
    color: #fff;
    background-color: rgba(0, 0, 0, .3);
}
.control:hover{
    background-color: rgba(0, 0, 0, .5);
}
.control.pre{
    left: 5px;
}
.control.next{
    right: 5px;
}
.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;
}