.item-image-wrapper {
    background-color: #110e08a9;
}

.item-image {
    animation: spin-y 4s linear infinite;
    transform-style: preserve-3d;
}

@keyframes spin-y {
    from { transform: perspective(70em) rotateY(0deg); }
    to   { transform: perspective(70em) rotateY(360deg); }
}