*
{
    margin: 0;
    padding: 0;
    padding-bottom: 100px;
    box-sizing: border-box;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #050505;
}
.cube
{
    position: relative;
    width: 200px;
    height: 200px;
    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(#151515,#00b5ec);
    transform: rotateY(calc(90deg * var(--i))) translateZ(100px);
    display: flex;
    justify-content: center;
    align-items: center;
    transform-style: preserve-3d;
}
.cube div span h2{
    padding-top: 150px;
    position: absolute;
    font-size: 1cm;
    color: white;
    transform: translateZ(50px);
}
.cube div span h2:nth-child(1)
{
    padding-top: 120px;
    transform: translateZ(0) translateY(20px);
    color: rgba(0, 0, 0, 0.1);
    filter: blur(2px);
}
.top
{
    position: absolute;
    top: 0;
    left: 0;
    width: 200px;
    height: 200px;
    background: #222;
    transform: rotateX(90deg) translateZ(100px);
}
.top::before
{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200px;
    height: 200px;
    background: rgb(0, 153, 255);
    transform: translateZ(-380px);
    filter: blur(20px);
    box-shadow: 0 0 120px rgba(0, 255, 200, 0.219),
    0 0 200px rgba(0, 255, 242, 0.4),
    0 0 300px rgba(0, 255, 234, 0.6),
    0 0 400px rgba(0, 255, 255, 0.8),
    0 0 500px rgb(0, 255, 234);
}