video.css

.video {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    background-color: #000000;
}

.video__link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video__media {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video__button {
    position: absolute;
    top: 50%;
    left: 50%;
    z-index: 1;
    display: none;
    padding: 0;
    width: 68px;
    height: 48px;
    border: none;
    background-color: transparent;
    transform: translate(-50%, -50%);
    cursor: pointer;
}

.video__button-shape {
    fill: #212121;
    fill-opacity: 0.8;
}

.video__button-icon {
    fill: #ffffff;
}

.video__button:focus {
    outline: none;
}

.video:hover .video__button-shape,
.video__button:focus .video__button-shape {
    fill: #ff0000;
    fill-opacity: 1;
}

/* Enabled */

.video--enabled {
    cursor: pointer;
}

.video--enabled .video__button {
    display: block;
}