.game-block__img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    transition: opacity 0.3s ease;
}

.game-block__img[data-src] {
    opacity: 0.5;
}

.grid {
    display: none;
}

.grid.active {
    display: block;
}