*{
    margin:0;
    padding:0;
    box-sizing: border-box;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
min-height: 100vh;
background: black;
}
.cube{
    position: relative;
    width: 300px;
    height: 300px;
    transform-style: preserve-3d;

animation: animate 4s linear infinite;
}
@keyframes animate
{
    0%
    {
        transform: rotateX(-30deg) rotateY(0deg);
    }
    100%
    {
        transform: rotateX(-30deg) rotateY(360deg);
    }
}
.cube div{
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    height:100%;
    transform-style: preserve-3d;
}
.cube div span{
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    height:100%;
    background: linear-gradient(black,aqua);
transform:rotateY(calc(90deg * var(--i))) translateZ(150px);
}
.top{
    position: absolute;
    top:0;
    left:0;
    width: 300px;
    height: 300px;
    background: #222;
    transform: rotateX(90deg) translateZ(150px);
}
.top::before{
    content: '';
    position: absolute;
    top:0;
    left:0;
    width: 300px;
    height: 300px;
background: aqua;
transform: translateZ(-380px);
filter: blur(20px);
box-shadow: 0 0 120px rgb(16, 179, 179), 0 0 200px rgb(6, 94, 94),0 0 300px rgb(9, 153, 153),0 0 400px rgb(13, 179, 179),0 0 500px rgb(7, 119, 119) ;
}