* {
    margin: 0;
    padding: 0;

    box-sizing: border-box;
}

body {
    min-height: 100vh;

    display: flex;
    justify-content: center;
    align-items: center;

    background: #050505;
}

.cube {
    margin: 6%;

    display: flex;
    justify-content: space-around;

    position: relative;
    top: 0;
    left: 0;
    width: 300px;
    height: 300px;

    transform-style: preserve-3d;
    transform: rotateX(-30deg);
    animation: animate 9s linear infinite;
}

.cube2 {
    animation: animate2 9s linear infinite;
}

.cube3 {
    animation: animate2 9s linear infinite;
}



@keyframes animate {
    0% {
        transform: ratateX(-30deg) ratateY(0deg);
    }
    100% {
        transform: rotateX(-30deg) rotateY(360deg);
    }
}


@keyframes animate2 {
    0% {
        transform: ratateX(-30deg) ratateY(0deg);
    }
    100% {
        transform: rotateX(-30deg) rotateY(-360deg);
    }
}

.cube div {
    position: relative;
    top: 0;
    left: 0;

    width: 100%;
    height: 100%;

    transform-style: preserve-3d;
}

.cube div span {
    position: absolute;
    top: 0;
    left: 0;

    font-size: 100px;
    font-weight: 500;

    text-align: center;
    color: white;

    width: 260px;
    height: 280px;

    filter: drop-shadow(0 50px 450px #f6f6f6);

    background: linear-gradient(to right bottom, transparent 50%,#fb8a09, #ff8e03) left / 50% 100% no-repeat, linear-gradient(to left bottom, transparent 50%,#fb8a09, #ff8e03) right / 50% 100% no-repeat;

    transform: rotateY(calc(
    90deg * var(--i))) translateZ(63px) rotateX(27deg);
}

.top {
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 0;

    background: transparent;

    transform: rotateX(90deg) translateZ(150px);
}

 .top:before {
    content: ' ';
    position: absolute;
    top: 0;
    left: 0;

    width: 260px;
    height: 280px;

    background: #ee8309;
    filter: blur(20px);
    box-shadow: 0 0 120px rgba(255, 157, 0, 0.2),
    0 0 200px rgba(255, 166, 0, 0.4),
    0 0 300px rgba(255, 136, 0, 0.6),
    0 0 400px rgba(255, 196, 0, 0.8),
    0 0 500px rgba(255, 179, 0, 0.1);

    transform: translateZ(-380px);
}

@media (max-width: 1050px) {
    .cube2 {
        display: none;
    }
}

@media (max-width: 710px) {
    .cube3 {
        display: none;
    }
}