.youtube-medium {
    width: 320px;
    height: 180px;
    background-size: 320px 180px;
}

.youtube-high {
    width: 480px;
    height: 360px;
    background-size: 480px 360px;
}

.youtube-sd {
    width: 640px;
    height: 480px;
    background-size: 640px 480px;
}

.youtube-max {
    width: 1920px;
    height: 1080px;
    background-size: 1920px 1080px;
}

.youtube-responsive {
    width: 100vw;
    height: calc(100vw  * 0.545);
    background-size: contain;
}

.youtube {
    background-color: #000;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}
.youtube img {
    width: 100%;
    left: 0;
    opacity: 0.7;
}
.youtube .play-button {
    width: 60px;
    height: 60px;
    background-color: rgb(234,108,30);
    box-shadow: 0 0 30px rgba( 0,0,0,0.6 );
    z-index: 1;
    opacity: 0.8;
    border-radius: 30px;
}
.youtube .play-button:before {
    content: "";
    border-style: solid;
    border-width: 15px 0 15px 26.0px;
    border-color: transparent transparent transparent #fff;
    margin-left: 3px;
}
.youtube img,
.youtube .play-button {
    cursor: pointer;
}
.youtube img,
.youtube iframe,
.youtube .play-button,
.youtube .play-button:before {
    position: absolute;
}
.youtube .play-button,
.youtube .play-button:before {
    top: 50%;
    left: 50%;
    transform: translate3d( -50%, -50%, 0 );
}
.youtube iframe {
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
}