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: 358px;
    overflow: hidden;
    width: 1310px;
    margin: 0 auto;
}
.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;  /*width: 1200px;
}
.roll_row .roll__list li{
  /*  float: left;
    display: block;
    margin-right: 46px;
    margin-left: 46px;
    width: 177px;
    height: 177px;
    line-height: 100px;
    font-weight: bold;
    font-size: 30px;
    text-align: center;
    color: #fff;*/
    /*background-color: #ff9900;*/
}
.roll__list img{background-size: 100% 100%;}
.control{
    font-size: 48px;
    position: absolute;
    top:128px;
    /*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;
}