.video-docker video {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.video-docker::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1;
}

.video-content {
    z-index: 2;
}