.three-list li.yxj a:hover {
    transform: translate(0,0px);
    box-shadow: 0 0 0px rgba(0,0,0,0);}
.video-box p{position: absolute;
    bottom: 0px;
    line-height: 40px;
    font-size: 18px;
    color: #fff;
    text-align: center;
    width: 100%;
    background: rgba(0,0,0,.5);}