.VideoList {
}
    .VideoList .volist {
        width: 1200px;
        margin: 20px auto;
    }

        .VideoList .volist .voa {
            position: relative;
            display: block;
            float: left;
            margin-right: 30px;
            margin-bottom: 20px;
        }

            .VideoList .volist .voa:nth-child(3n+3) {
                margin-right: 0px;
            }

        .VideoList .volist .voimg {
            display: block;
            width: 380px;
            height: 230px;
            border-radius: 3px;
        }
        .VideoList .volist .voico {
            position: absolute;
            z-index: 2;
            left: 170px;
            top: 95px;
            width:40px;
            height:40px;
        }
        .VideoList .volist .vobg {
            position: absolute;
            z-index: 1;
            left: 0px;
            top: 0px;
            width: 380px;
            height: 230px;
            background-color:#000;
            opacity:0.5
        }
        .VideoList .volist .voname {
            line-height: 40px;
            text-align: center;
        }