*, *::before, *::after {
  padding: 0;
  margin: 0 auto;
  box-sizing: border-box;
}

body {
  background-color: #111;
  color: #fff;
  min-height: 100vh;
  display: grid;
  place-items: center;
  perspective: 420px;
  background-image: radial-gradient(circle, #ddd, rgba(221, 221, 221, 0) 20em), conic-gradient(#7bf, #7fb, #b7f, #bf7, #f7b, #fb7, #7bf);
  overflow: hidden;
}
body::after, body::before {
  content: "";
  position: absolute;
  inset: -100%;
  background-image: repeating-conic-gradient(rgba(255, 255, 255, 0.0666666667) 0 10deg, rgba(255, 255, 255, 0) 0 20deg, rgba(255, 255, 255, 0.0666666667) 0 40deg, rgba(255, 255, 255, 0) 0 55deg);
  z-index: -1;
  animation: ray infinite linear;
  animation-duration: 30s;
}
body::before {
  animation-duration: 60s;
  animation-direction: reverse;
}
@keyframes ray {
  to {
    rotate: 1turn;
  }
}
body *:not(:empty) {
  transform-style: preserve-3d;
}

.outer {
  position: relative;
  font-size: 42px;
  animation: swingX 12s -12s infinite ease-in-out alternate;
}
.outer .inner {
  animation: swingY 12s -6s infinite ease-in-out alternate;
}
.outer .inner::after {
  content: "";
  position: absolute;
  width: 12em;
  height: 10em;
  transform: translate(-50%, -50%);
  border: 2px solid plum;
  box-shadow: 0 0 1em purple, 0 0 1em palevioletred inset;
}
@keyframes swingX {
  from {
    rotate: x -20deg;
  }
  to {
    rotate: x 20deg;
  }
}
@keyframes swingY {
  from {
    rotate: y -20deg;
  }
  to {
    rotate: y 20deg;
  }
}
.outer .box {
  position: absolute;
  width: var(--w, 1em);
  height: var(--h, 1em);
  translate: calc(var(--tx, 0em) - 50%) calc(var(--ty, 0em) - 50%);
  animation: boxRotate var(--duration) var(--delay1, 0s) infinite, boxScale 3s var(--delay2, 0s) infinite ease-in-out;
}
@keyframes boxScale {
  0%, 20%, 100% {
    scale: 1;
  }
  10% {
    scale: 0.7;
  }
}
@keyframes boxRotate {
  0% {
    transform: rotateX(0deg) rotateY(0deg);
  }
  10%, 25% {
    transform: rotateX(180deg) rotateY(0deg);
  }
  35%, 50% {
    transform: rotateX(180deg) rotateY(360deg);
  }
  60%, 75% {
    transform: rotateX(-180deg) rotateY(360deg);
  }
  85%, 100% {
    transform: rotateX(-180deg) rotateY(180deg);
  }
}
.outer .box:nth-child(1) {
  --duration: 11.9914885548s;
  --delay1: -5.9238559025s;
  --delay2: -0.7763249025s;
}
.outer .box:nth-child(2) {
  --duration: 11.7295390268s;
  --delay1: -9.4115875285s;
  --delay2: -0.4376639147s;
}
.outer .box:nth-child(3) {
  --duration: 9.7613343139s;
  --delay1: -4.5418872112s;
  --delay2: -0.8836903431s;
}
.outer .box:nth-child(4) {
  --duration: 10.88461645s;
  --delay1: -8.9281940929s;
  --delay2: -1.2884428694s;
}
.outer .box:nth-child(5) {
  --duration: 10.0125751118s;
  --delay1: -6.9981512627s;
  --delay2: -2.8264060339s;
}
.outer .box:nth-child(6) {
  --duration: 9.5941513565s;
  --delay1: -0.8542448554s;
  --delay2: -2.8620317097s;
}
.outer .box:nth-child(7) {
  --duration: 9.073220232s;
  --delay1: -10.1610322931s;
  --delay2: -1.0700342678s;
}
.outer .box:nth-child(8) {
  --duration: 11.9542129166s;
  --delay1: -7.244229502s;
  --delay2: -0.6530214495s;
}
.outer .box:nth-child(9) {
  --duration: 10.7289233951s;
  --delay1: -1.5308521335s;
  --delay2: -1.7629430563s;
}
.outer .box:nth-child(1) {
  --w: 1em;
  --h: 4em;
  --tx: -3.75em;
  --ty: -1.5em;
}
.outer .box:nth-child(2) {
  --w: 3em;
  --h: 1em;
  --tx: -1.75em;
  --ty: -0em;
}
.outer .box:nth-child(3) {
  --w: 1em;
  --h: 3em;
  --tx: -0.75em;
  --ty: -2em;
}
.outer .box:nth-child(4) {
  --w: 1em;
  --h: 3em;
  --tx: -0.75em;
  --ty: 2em;
}
.outer .box:nth-child(5) {
  --w: 3em;
  --h: 1em;
  --tx: 1.75em;
  --ty: -3em;
}
.outer .box:nth-child(6) {
  --w: 1em;
  --h: 3em;
  --tx: 3.75em;
  --ty: -2em;
}
.outer .box:nth-child(7) {
  --w: 3em;
  --h: 1em;
  --tx: 2.75em;
  --ty: -0em;
}
.outer .box:nth-child(8) {
  --w: 1em;
  --h: 3em;
  --tx: 0.75em;
  --ty: 1em;
}
.outer .box:nth-child(9) {
  --w: 4em;
  --h: 1em;
  --tx: 2.25em;
  --ty: 3em;
}
.outer .box > div {
  position: absolute;
  background-color: palevioletred;
  background-image: linear-gradient(transparent, plum, transparent), linear-gradient(90deg, transparent, plum, transparent);
  box-shadow: 0 0 0.5em purple inset;
}
.outer .box > div:nth-child(1) {
  inset: 0.1em;
  transform: translateZ(0.4em);
}
.outer .box > div:nth-child(2) {
  inset-block: 0.1em;
  width: 0.8em;
  right: 0.1em;
  transform: translateX(50%) rotateY(-90deg);
}
.outer .box > div:nth-child(3) {
  inset: 0.1em;
  transform: rotateY(180deg) translateZ(0.4em);
}
.outer .box > div:nth-child(4) {
  inset-block: 0.1em;
  width: 0.8em;
  left: 0.1em;
  transform: translateX(-50%) rotateY(90deg);
}
.outer .box > div:nth-child(5) {
  inset-inline: 0.1em;
  height: 0.8em;
  top: 0.1em;
  transform: translateY(-50%) rotateX(90deg);
}
.outer .box > div:nth-child(6) {
  inset-inline: 0.1em;
  height: 0.8em;
  bottom: 0.1em;
  transform: translateY(50%) rotateX(-90deg);
}