* {
    box-sizing: border-box;
}

.box {
    position: relative;
    width: 200px;     /* size of each image */
    height: 200px;
    margin: 100px auto; /* center on page */
    transform-style: preserve-3d;
    animation: animate 40s linear infinite;
}

@keyframes animate {
    0% {
        transform: perspective(1000px) rotateY(0deg);
    }
    100% {
        transform: perspective(1000px) rotateY(360deg);
    }
}

.box span {
    position: absolute;
    top: 0;
    left: 0;
    width: 200px;
    height: 200px;
    transform-origin: center;
    transform-style: preserve-3d;
    transform: rotateY(calc(var(--i) * 45deg)) translateZ(500px); 
    /* spread items in a circle */
    -webkit-box-reflect: below 0px
        linear-gradient(transparent, transparent, #0004);
}
.box span img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}