.kotak
{
    margin-left: 65px;
    margin-bottom: 50px;
    position: relative;
    width: 150px;
    height: 150px;
    transform-style: preserve-3d;
    animation: animate 80s linear infinite;
}

@keyframes animate
{
    0%
    {
        transform: perspective(1000px) rotateY(0deg);
    }
    100%
    {
        transform: perspective(1000px) rotateY(360deg);
    }
}
.kotak span
{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform-origin: center;
    transform-style: preserve-3d;
    transform: rotateY(calc(var(--i)*45deg)) translateZ(220px);
    -webkit-box-reflect: below 0px linear-gradient(transparent,transparent,#0004);
}
.kotak span img
{
    border-radius: 10px; /* sudut tumpul */
    background: linear-gradient(145deg, #ffffff, #ffffff); /* efek cahaya */
    box-shadow: 
        2px 2px 5px rgba(248, 248, 248, 0.3);
    transform-style: preserve-3d;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    padding: 1px;
}