.wrap{
    position: relative;
    background-color: #fff;
    border-radius: 14px;
    width: 50vw;
    min-height: 40vh;
    overflow: hidden;
}
.video{
    display: block;
    width: 100%;
}
.playBtn{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
}