Neon Clock

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main {
  --s: 100%;
  --l: 50%;
  display: flex;
  color: hsl(0deg, var(--s), var(--l));  gap: 1rem;
  width: 100%;
  height: 100%;
  position: relative;
  align-items: center;
  justify-content: center;
  animation-composition: add;
  -webkit-animation: camera-pan 30s linear forwards infinite;
          animation: camera-pan 30s linear forwards infinite;
  translate: 0rem 1rem 10rem;
  transform-style: preserve-3d;
}
main .digits {
  transform-style: preserve-3d;
}
main .digits .group {
  display: flex;
  gap: 2rem;
}
main .digits .group .digit {
  position: relative;
  height: 16rem;
  aspect-ratio: 1/2;
  filter: drop-shadow(0px 0px 4px currentColor) drop-shadow(0px 0px 10px currentColor);
}
main .digits .group .digit span {
  --act: 0;
  --signX: 1;
  --signY: 1;
  position: absolute;
  background-color: white;
  transition: all 0.3s cubic-bezier(0.17, 0.67, 0.5, 1.15);
  opacity: calc(0.03 + 0.97 * var(--act));
  animation-composition: add;
  transform: scale(var(--signX), var(--signY));
}
main .digits .group .digit span.end {
  -webkit-clip-path: polygon(15% 0%, 7.5% 20%, 25% 100%, 75% 100%, 92.5% 20%, 85% 0%);
          clip-path: polygon(15% 0%, 7.5% 20%, 25% 100%, 75% 100%, 92.5% 20%, 85% 0%);
  width: 100%;
  height: 10%;
}
main .digits .group .digit span.end.top {
  top: 0;
}
main .digits .group .digit span.end.bottom {
  top: initial;
  bottom: 0;
  --signY: -1;
}
main .digits .group .digit span.side {
  -webkit-clip-path: polygon(0% 15%, 20% 7.5%, 100% 22.5%, 100% 85%, 20% 95%, 0% 90%);
          clip-path: polygon(0% 15%, 20% 7.5%, 100% 22.5%, 100% 85%, 20% 95%, 0% 90%);
  height: 50%;
  width: 20%;
}
main .digits .group .digit span.side.left {
  top: 0;
  left: 0;
}
main .digits .group .digit span.side.left.bottom {
  top: initial;
  bottom: 0;
  --signY: -1;
}
main .digits .group .digit span.side.right {
  top: 0;
  left: initial;
  right: 0;
  --signX: -1;
}
main .digits .group .digit span.side.right.bottom {
  top: initial;
  --signY: -1;
  bottom: 0;
}
main .digits .group .digit span.middle {
  -webkit-clip-path: polygon(22.5% 0%, 6.5% 50%, 22.5% 100%, 77.5% 100%, 93.5% 50%, 77.5% 0%);
          clip-path: polygon(22.5% 0%, 6.5% 50%, 22.5% 100%, 77.5% 100%, 93.5% 50%, 77.5% 0%);
  top: 45%;
  height: 10%;
  width: 100%;
}
main .digits .group .digit[data-digit="0"] :not(.middle) {
  --act: 1;
}
main .digits .group .digit[data-digit="1"] .right {
  --act: 1;
}
main .digits .group .digit[data-digit="2"] :not(.top.left, .bottom.right) {
  --act: 1;
}
main .digits .group .digit[data-digit="3"] :not(.left) {
  --act: 1;
}
main .digits .group .digit[data-digit="4"] :not(.end, .bottom.left) {
  --act: 1;
}
main .digits .group .digit[data-digit="5"] :not(.top.right, .bottom.left) {
  --act: 1;
}
main .digits .group .digit[data-digit="6"] :not(.top.right) {
  --act: 1;
}
main .digits .group .digit[data-digit="7"] .top, main .digits .group .digit[data-digit="7"] .right {
  --act: 1;
}
main .digits .group .digit[data-digit="8"] > * {
  --act: 1;
}
main .digits .group .digit[data-digit="9"] :not(.bottom.left) {
  --act: 1;
}
main .colon-group {
  transform-style: preserve-3d;
}
main .colon-group .colon span {
  display: flex;
  height: 16rem;
  flex-direction: column;
  justify-content: space-evenly;
  width: 4rem;
  align-items: center;
  filter: drop-shadow(0px 0px 4px currentColor) drop-shadow(0px 0px 10px currentColor);
}
main .colon-group .colon span::before, main .colon-group .colon span::after {
  content: "";
  display: block;
  width: 2rem;
  aspect-ratio: 1/1;
  background-color: white;
  border-radius: 2rem;
}
main .shadow {
  top: 0;
  position: absolute;
  transform-origin: bottom center;
  transform: translateY(1rem) translateZ(2rem) rotateX(-90.1deg);
}
main .shadow .digit span {
  opacity: var(--act);
}
main .shadow.shadow1 {
  opacity: 0.5;
  filter: drop-shadow(0px 0px 4px currentColor) drop-shadow(0px 0px 10px currentColor) blur(4rem);
}
main .shadow.shadow1 > span, main .shadow.shadow1 .digit {
  -webkit-mask-image: linear-gradient(to bottom, white, rgba(0, 0, 0, 0.5));
          mask-image: linear-gradient(to bottom, white, rgba(0, 0, 0, 0.5));
}
main .shadow.shadow2 {
  opacity: 0.4;
  filter: drop-shadow(0px 0px 4px currentColor) drop-shadow(0px 0px 10px currentColor) blur(4px);
}
main .shadow.shadow2 > span, main .shadow.shadow2 .digit {
  opacity: var(--act);
  -webkit-mask-image: linear-gradient(to top, black, rgba(0, 0, 0, 0.1) 60%, rgba(0, 0, 0, 0));
          mask-image: linear-gradient(to top, black, rgba(0, 0, 0, 0.1) 60%, rgba(0, 0, 0, 0));
}

@-webkit-keyframes camera-rotate {
  0% {
    transform: rotateY(-10deg);
  }
  50% {
    transform: rotateY(10deg);
  }
  100% {
    transform: rotateY(-10deg);
  }
}

@keyframes camera-rotate {
  0% {
    transform: rotateY(-10deg);
  }
  50% {
    transform: rotateY(10deg);
  }
  100% {
    transform: rotateY(-10deg);
  }
}
@-webkit-keyframes camera-pan {
  0% {
    transform: translate(0rem, 0rem);
  }
  20% {
    transform: translate(1rem, 2rem);
  }
  40% {
    transform: translate(-2rem, 2.5rem);
  }
  50% {
    transform: translate(-1.5rem, 1.5rem);
  }
  70% {
    transform: translate(-0.5rem, -0.5rem);
  }
  90% {
    transform: translate(1.5rem, -1rem);
  }
  100% {
    transform: translate(0rem, 0rem);
  }
}
@keyframes camera-pan {
  0% {
    transform: translate(0rem, 0rem);
  }
  20% {
    transform: translate(1rem, 2rem);
  }
  40% {
    transform: translate(-2rem, 2.5rem);
  }
  50% {
    transform: translate(-1.5rem, 1.5rem);
  }
  70% {
    transform: translate(-0.5rem, -0.5rem);
  }
  90% {
    transform: translate(1.5rem, -1rem);
  }
  100% {
    transform: translate(0rem, 0rem);
  }
}
@-webkit-keyframes hue-rotate {
  0% {
    color: hsl(0deg, var(--s), var(--l));
  }
  8.33% {
    color: hsl(30deg, var(--s), var(--l));
  }
  16.67% {
    color: hsl(60deg, var(--s), var(--l));
  }
  25% {
    color: hsl(90deg, var(--s), var(--l));
  }
  33.33% {
    color: hsl(120deg, var(--s), var(--l));
  }
  41.67% {
    color: hsl(150deg, var(--s), var(--l));
  }
  50% {
    color: hsl(180deg, var(--s), var(--l));
  }
  58.33% {
    color: hsl(210deg, var(--s), var(--l));
  }
  66.67% {
    color: hsl(240deg, var(--s), var(--l));
  }
  75% {
    color: hsl(270deg, var(--s), var(--l));
  }
  83.33% {
    color: hsl(300deg, var(--s), var(--l));
  }
  91.67% {
    color: hsl(330deg, var(--s), var(--l));
  }
  100% {
    color: hsl(360deg, var(--s), var(--l));
  }
}
@keyframes hue-rotate {
  0% {
    color: hsl(0deg, var(--s), var(--l));
  }
  8.33% {
    color: hsl(30deg, var(--s), var(--l));
  }
  16.67% {
    color: hsl(60deg, var(--s), var(--l));
  }
  25% {
    color: hsl(90deg, var(--s), var(--l));
  }
  33.33% {
    color: hsl(120deg, var(--s), var(--l));
  }
  41.67% {
    color: hsl(150deg, var(--s), var(--l));
  }
  50% {
    color: hsl(180deg, var(--s), var(--l));
  }
  58.33% {
    color: hsl(210deg, var(--s), var(--l));
  }
  66.67% {
    color: hsl(240deg, var(--s), var(--l));
  }
  75% {
    color: hsl(270deg, var(--s), var(--l));
  }
  83.33% {
    color: hsl(300deg, var(--s), var(--l));
  }
  91.67% {
    color: hsl(330deg, var(--s), var(--l));
  }
  100% {
    color: hsl(360deg, var(--s), var(--l));
  }
}
.safari .digit span {
  transition: none !important;
}
.safari .digit span::before {
  content: "";
  position: absolute;
  display: block;
  width: 400%;
  height: 400%;
  top: 0;
  left: 0;
  transform: translate(-50%, -50%);
}

JS

const bars = [
	['end', 'top'],
	['side', 'top', 'left'],
	['side', 'top', 'right'],
	['middle'],
	['side', 'bottom', 'left'],
	['side', 'bottom', 'right'],
	['end', 'bottom']
];

const $main = document.querySelector('main');

const addDigits = number => {
	const initGroup = (number, padding = 2) => {
		const $group = document.createElement('div');
		$group.classList.add('group');

$group.append(...digits);

return {
			element: $group,
			set number(val) {
				number = val;
				[...`${number}`.padStart(padding, 0).substring(`${number}`.length - 2)].forEach((digit, i) => {
					digits[i].setAttribute('data-digit', digit);
				});
			},

get number() {
				return number;
			}
		}
	}
	
	const $digits = document.createElement('div');
	$digits.classList.add('digits');
	const group = initGroup(number);
	const groupShadow1 = initGroup(number);
	const groupShadow2 = initGroup(number);
	groupShadow1.element.classList.add('shadow');
	groupShadow1.element.classList.add('shadow1');
	groupShadow2.element.classList.add('shadow');
	groupShadow2.element.classList.add('shadow2');
	$digits.append(group.element);
	$digits.append(groupShadow1.element);
	$digits.append(groupShadow2.element);
	$main.append($digits);
	
	return {
		set number(val) {
			number = val;
			group.number = val;
			groupShadow1.number = val;
			groupShadow2.number = val;
		},
		get number() {
			return number;
		}
	}
}

const addColon = () => {
	const $colonGroup = document.createElement('div');
	$colonGroup.classList.add('colon-group');
	const $colon = document.createElement('figure');
	$colon.append(document.createElement('span'));
	const $colonShadow1 = document.createElement('figure');
	$colonShadow1.append(document.createElement('span'));
	const $colonShadow2 = document.createElement('figure');
	$colonShadow2.append(document.createElement('span'));
	$colon.classList.add('colon');
	$colonShadow1.classList.add('colon', 'shadow', 'shadow1');
	$colonShadow2.classList.add('colon', 'shadow', 'shadow2');
	$colonGroup.append($colon);
	$colonGroup.append($colonShadow1);
	$colonGroup.append($colonShadow2);
	$main.append($colonGroup);
}

if (/^(?:(?!chrome|android)[\s\S])*(?:safari|iPad|iPhone|iPod)/i.test(navigator.userAgent)) {
	document.body.classList.add('safari');
}

init();

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