html, body {
    margin: 0px;
    background: #222f3e;
    overflow: hidden;
    color: #c8d6e5;
    font-family: sans-serif;

    perspective: 1200px;
    height: 100vh;
}

h1 {
    text-align: center;
    user-select: none;
}

#cubes {
    text-align: center;
}

.pointer {
    cursor: pointer;
}

svg {
    margin: 30px;
    user-select: none;
    overflow: visible;
}

svg text {
    text-anchor: middle;
    dominant-baseline: middle;
    fill: #222f3e;
    font-family: monospace;
    font-size: 14pt;
    font-weight: 600;
}

.hide {
    display: none;
}

#default-example {
    background: linear-gradient(skyblue,khaki);
    perspective: 550px
}

#example-element {
    width: 100px;
    height: 100px;
    transform-style: preserve-3d
}

.face {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    position: absolute;
    backface-visibility: inherit;
    font-size: 60px;
    color: #fff
}

.rubik {
    margin-left: 500px;
    width: 900px;
    height: 300px;
    position: relative;
    transform-style: preserve-3d;
}

.cube {
    width: 100px;
    height: 100px;
    position: absolute;
    transform-style: preserve-3d;
}
.cube div {
    position: absolute;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #ccc;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    line-height: 100px;
    font-size: 40px;
    text-align: center;
}
.front  { transform: translateZ(50px); }
.back   { transform: rotateY(180deg) translateZ(50px); }
.right  { transform: rotateY(90deg) translateZ(50px); }
.left   { transform: rotateY(-90deg) translateZ(50px); }
.top    { transform: rotateX(90deg) translateZ(50px); }
.bottom { transform: rotateX(-90deg) translateZ(50px); }

@keyframes rotate {
    from { transform: rotateX(-30deg) rotateY(-30deg); }
    to { transform: rotateX(-30deg) rotateY(330deg); }
}