body {
    background-color: #111;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.mosaic {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

img.rotate {
    width: 150px;
    animation: spinY 5s linear infinite;
}

img.preview {
    width: 150px;
    margin-top: 20px;
}

@keyframes spinY {
    from {
        transform: rotateY(0deg);
    }
    to {
        transform: rotateY(360deg);
    }
}