.video-thumbnail
{
    position: relative;
    display: inline-block;
}

    .video-thumbnail img
    {
        display: block;
    }

.play-overlay
{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 64px;
    color: white;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}