<header>
  <h2 class="title">element.style.transformStyle</h2>
  <p class="description">Визначає, як дочірні елементи будуть відображатися в 3D-просторі.</p>
</header>
<main>
  <div class="result">
    <div id="cube">
      <div class="face front">Front</div>
      <div class="face back">Back</div>
      <div class="face left">Left</div>
      <div class="face right">Right</div>
      <div class="face top">Top</div>
      <div class="face bottom">Bottom</div>
    </div>
    <div class="controls">
      <button id="rotateX">Обертати по X</button>
      <button id="rotateY">Обертати по Y</button>
      <button id="toggle3D">Перемикання 3D</button>
    </div>
  </div>
</main>

body {
  font-size: 16px;
  line-height: 1.5;
  font-family: monospace;
  height: 100vh;
  margin: 0;
}

header {
  background-color: #f1f1f1;
  margin-bottom: 25px;
  padding: 15px;
  -webkit-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  -moz-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  text-align: center;
}

header h2.title {
  padding-bottom: 15px;
  border-bottom: 1px solid #999;
}

header p.description {
  font-style: italic;
  color: #222;
}

.result {
  background-color: #f8f8f8;
  padding: 15px;
  -webkit-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  -moz-box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  box-shadow: 0px 0px 3px 0px rgba(118, 118, 118, 1);
  perspective: 800px;
  text-align: center;
}

#cube {
  width: 100px;
  height: 100px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(0) rotateY(0);
  transition: transform 0.5s;
  left: 40%;
}

.face {
  position: absolute;
  width: 100px;
  height: 100px;
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid #ccc;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 20px;
  font-weight: bold;
}

.front { transform: translateZ(50px); }
.back { transform: rotateY(180deg) translateZ(50px); }
.left { transform: rotateY(-90deg) translateZ(50px); }
.right { transform: rotateY(90deg) translateZ(50px); }
.top { transform: rotateX(90deg) translateZ(50px); }
.bottom { transform: rotateX(-90deg) translateZ(50px); }

.controls {
  margin-top: 20px;
}

button {
  margin: 10px;
  padding: 10px 20px;
  font-size: 16px;
  cursor: pointer;
}

let cube = document.getElementById('cube');
let angleX = 0;
let angleY = 0;
let is3D = true;

document.getElementById('rotateX').addEventListener('click', () => {
    angleX += 45;
    updateCubeTransform();
});

document.getElementById('rotateY').addEventListener('click', () => {
    angleY += 45;
    updateCubeTransform();
});

document.getElementById('toggle3D').addEventListener('click', () => {
    is3D = !is3D;
    cube.style.transformStyle = is3D ? 'preserve-3d' : 'flat';
});

function updateCubeTransform() {
    cube.style.transform = `rotateX(${angleX}deg) rotateY(${angleY}deg)`;
}

External CSS

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External JavaScript

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