.video-block {
    width: 100%;
    height: fit-content;
}

.video-block .--thumb {z-index: 10;}
.video-block .--button {z-index: 20;}

.video-block[data-preview='false'] .--button {opacity: 0;}
.video-block .--button {transition: opacity 250ms ease-in-out;}

.video-block .--button {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .25);
}