:root {
  --boxColor: #0ff7;
  --rotateSpeed: 30s;
  --bounceSpeed: 1.5s;
}

body {
  background-color: #000;
  min-height: 100vh;
  overflow: hidden;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  font-size: 75px;
  -webkit-perspective: 10em;
          perspective: 10em;
  -webkit-perspective-origin: 50% calc(50% - 2.5em);
          perspective-origin: 50% calc(50% - 2.5em);
}

.scene {
  position: relative;
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
  -webkit-animation: sceneRotate var(--rotateSpeed) infinite linear;
          animation: sceneRotate var(--rotateSpeed) infinite linear;
}

@-webkit-keyframes sceneRotate {
  to {
    -webkit-transform: rotateY(360deg);
            transform: rotateY(360deg);
  }
}

@keyframes sceneRotate {
  to {
    -webkit-transform: rotateY(360deg);
            transform: rotateY(360deg);
  }
}

.ball {
  width: 1em;
  height: 1em;
  border-radius: 50%;
  background-color: lightblue;
  position: absolute;
  left: -.5em;
  bottom: 1em;
  background-image: radial-gradient(circle at top, lightblue, #000);
  animation: ballBounce var(--bounceSpeed) infinite ease-out, sceneRotate var(--rotateSpeed) infinite linear reverse;
}

@-webkit-keyframes ballBounce {
  0%, 100% {
    bottom: 0.5em;
  }
  50% {
    bottom: 3em;
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
}

@keyframes ballBounce {
  0%, 100% {
    bottom: 0.5em;
  }
  50% {
    bottom: 3em;
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
}

.ballShadow {
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(#0007, #0000 50%);
  -webkit-animation: ballShadow var(--bounceSpeed) infinite ease-out;
          animation: ballShadow var(--bounceSpeed) infinite ease-out;
}

@-webkit-keyframes ballShadow {
  0%, 8%, 93.5%, 100% {
    -webkit-transform: scale(1);
            transform: scale(1);
    opacity: 1;
  }
  50% {
    -webkit-transform: scale(2);
            transform: scale(2);
    opacity: 0.5;
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
}

@keyframes ballShadow {
  0%, 8%, 93.5%, 100% {
    -webkit-transform: scale(1);
            transform: scale(1);
    opacity: 1;
  }
  50% {
    -webkit-transform: scale(2);
            transform: scale(2);
    opacity: 0.5;
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
  }
}

.cube {
  width: 2em;
  height: 2em;
  -webkit-transform-style: preserve-3d;
          transform-style: preserve-3d;
  position: absolute;
  bottom: -1em;
  left: -1em;
  -webkit-animation: cubeHeight var(--bounceSpeed) infinite linear;
          animation: cubeHeight var(--bounceSpeed) infinite linear;
}

@-webkit-keyframes cubeHeight {
  0%, 100% {
    height: 1.5em;
  }
  8%, 93.5% {
    height: 2em;
  }
}

@keyframes cubeHeight {
  0%, 100% {
    height: 1.5em;
  }
  8%, 93.5% {
    height: 2em;
  }
}

.cube .left, .cube .right, .cube .front, .cube .back {
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: var(--boxColor);
  -webkit-box-shadow: 0 0 0.5em #000a inset;
          box-shadow: 0 0 0.5em #000a inset;
}

.cube .front {
  -webkit-transform: translateZ(1em);
          transform: translateZ(1em);
}

.cube .right {
  -webkit-transform: rotateY(90deg) translateZ(1em);
          transform: rotateY(90deg) translateZ(1em);
}

.cube .back {
  -webkit-transform: rotateY(180deg) translateZ(1em);
          transform: rotateY(180deg) translateZ(1em);
}

.cube .left {
  -webkit-transform: rotateY(270deg) translateZ(1em);
          transform: rotateY(270deg) translateZ(1em);
}

.cube .top {
  position: absolute;
  width: 2em;
  height: 2em;
  background-color: var(--boxColor);
  -webkit-transform: translateY(-50%) rotateX(90deg);
          transform: translateY(-50%) rotateX(90deg);
  -webkit-box-shadow: 0 0 0.5em #000a inset;
          box-shadow: 0 0 0.5em #000a inset;
}

.cube .bottom {
  position: absolute;
  width: 2em;
  height: 2em;
  background: #0007;
  bottom: 0;
  -webkit-transform: translateY(50%) rotateX(90deg);
          transform: translateY(50%) rotateX(90deg);
  -webkit-box-shadow: 0 0 0.5em #000;
          box-shadow: 0 0 0.5em #000;
}

.floor {
  position: absolute;
  top: 1em;
  -webkit-transform: translate(-50%, -50%) rotateX(90deg);
          transform: translate(-50%, -50%) rotateX(90deg);
  width: 15em;
  height: 15em;
  background-image: radial-gradient(#0000, #000 75%), repeating-conic-gradient(from 45deg, #111 0deg 90deg, #222 90deg 180deg);
  background-size: 100%, 1em 1em;
}
/*# sourceMappingURL=style.css.map */