main{
    font-size: 100px;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 10em;
    perspective-origin: 50% calc(50% - 3em);
  
  }
  
  .scene{
    position: relative;
    transform-style: preserve-3d;
    animation: rotate 30s linear infinite;
  
    
  }
  
  .floor{
    width: 15em;
    height: 15em;
    position: absolute;
    top: 1em;
    background-image: 
      radial-gradient(rgb(32 32 32 /.75) 10%,rgb(32 32 32 /.05) 20%, rgb(32 32 32 / 1) 60%),
      repeating-conic-gradient(from 45deg, rgb(240 240 240 /.5) 0deg 90deg, rgb(64 64 64 /.5) 90deg 180deg);
    background-size: 100%, 1em 1em;
    transform: translate(-50%, -50%) rotateX(90deg);
  
  }
  
  .cube{
    position: absolute;
    width: 2em;
    height: 2em;
    transform-style: preserve-3d;
    /* animation: rotate 5s linear infinite; */
    top: -1em;
    left: -1em;
  
  }
  
  .center{
    position: absolute; 
    width: 0.25em;
    height: 0.25em;
    border-radius: 50%;
    background-color: rgb(240 64 250 / 1);
    transform: translate(-50%, -50%);
  }
  
  .front, .back, .left, .right{
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgb(33 66 99 /0.5);
    box-shadow: inset 0 0 0.5em 0 rgb(12 24 36 / 0.75);
  }
  
  .front{
    transform: translateZ(1em);
  }
  
  .back{
    transform: rotateY(180deg) translateZ(1em);
    /* transform: translateZ(1em) rotateY(180deg); */
  }
  
  .right{
    transform: rotateY(90deg) translateZ(1em);
  }
  
  .left{
    transform: rotateY(-90deg) translateZ(1em);
  }
  
  .top{
    transform: rotateX(90deg) translateZ(1em);
    width: 2em;
    height: 2em;
    background-color: rgba(57, 109, 162, 0.25);    
    background-image: radial-gradient(rgb(32 32 32 / 0.75) 20%, rgb(32 32 32 / 0.05) 33%);
  }
  
  .bottom{
    transform: rotateY(90deg) translateZ(1em);
  }
  
  .ball{
    position: absolute;
    width: 1em;
    height: 1em;
    border-radius: 50%;
    left: -.5em;
    bottom: 1em;
    background-image: radial-gradient(circle at top, rgb(33 66 99 / 0.9), rgb(0 33 66 / 1));
    animation: rotate 30s linear infinite reverse;
  }
  
  /** @keyframe animations */
  
  /* @keyframes rotate{
    0%{
      transform: rotateX(0deg);
    }
    100%{
      transform: rotateX(360deg);
    }
  } */
  
   @keyframes rotate{
    0%{
      transform: rotateY(0deg);
    }
    100%{
      transform: rotateY(360deg);
    }
  } 
  
  /* @keyframes rotate{
    0%{
      transform: rotateZ(0deg);
    }
    100%{
      transform: rotateX(360deg);
    }
  } */