JSFiddle - React, Tailwind, and code Playground

HTML

<div class="loading">
  <div class="preloader">
    <div class="scene">
      <div class="plane">
        <div class="cube cube--0">
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
        </div>
        <div class="shadow shadow--0"></div>
        <div class="cube cube--1">
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
        </div>
        <div class="shadow shadow--1"></div>
        <div class="cube cube--2">
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
        </div>
        <div class="shadow shadow--2"></div>
        <div class="cube cube--3">
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
        </div>
        <div class="shadow shadow--3"></div>
        <div class="cube cube--4">
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
        </div>
        <div class="shadow shadow--4"></div>
        <div class="cube cube--5">
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div class="cube__side"></div>
          <div...

CSS

/* loader start */

:root {
  --hue: 185;
  --radius: 5.5;
  --size: 1;
}

.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
}

.isBlur {
  filter: blur(5px);
}

.scene {
  perspective: 800px;
  transform-style: preserve-3d;
  height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
}

.plane {
  height: 5vmin;
  width: 5vmin;
  transform-style: preserve-3d;
  transform: rotateX(-40deg) rotateY(-45deg) rotateX(90deg);
}

.cube,
.shadow {
  --width: var(--size);
  --height: var(--size);
  --depth: var(--size);
  height: calc(var(--depth) * 1vmin);
  width: calc(var(--width) * 1vmin);
  transform-style: preserve-3d;
  position: absolute;
  font-size: 1rem;
  animation: jump 0.8s calc(var(--d) * 1s) infinite;
  transform: translate3d(calc((var(--x) * var(--radius)) * 1vmin), calc((var(--y) * var(--radius)) * -1vmin), 0);
}

.cube>div:nth-of-type(1),
.shadow>div:nth-of-type(1) {
  background: hsl(var(--hue), 60%, 50%);
  height: calc(var(--height) * 1vmin);
  width: 100%;
  transform-origin: 50% 50%;
  transform: rotateX(-90deg);
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotateX(-90deg) translate3d(0, 0, calc((var(--depth) / 2) * 1vmin));
}

.cube>div:nth-of-type(2),
.shadow>div:nth-of-type(2) {
  background: hsl(var(--hue), 60%, 60%);
  height: calc(var(--height) * 1vmin);
  width: 100%;
  transform-origin: 50% 50%;
  transform: translate(-50%, -50%) rotateX(-90deg) rotateY(180deg) translate3d(0, 0, calc((var(--depth) / 2) * 1vmin));
  position: absolute;
  top: 50%;
  left: 50%;
}

.cube>div:nth-of-type(3),
.shadow>div:nth-of-type(3) {
  background: hsl(var(--hue), 60%, 60%);
  height: calc(var(--height) * 1vmin);
  width: calc(var(--depth) * 1vmin);
  transform: translate(-50%, -50%) rotateX(-90deg) rotateY(90deg) translate3d(0, 0, calc((var(--width) / 2) * 1vmin));
  position: absolute;
  top: 50%;
  left:...