CSS3 3D立方体

HTML

<div class="wrap">
    <div class="box">
        <div class="face front">1</div>
        <div class="face back">2</div>
        <div class="face right">3</div>
        <div class="face left">4</div>
        <div class="face top">5</div>
        <div class="face bottom">6</div>
    </div>
</div>

CSS

.wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 500px;
    width: 100%;
    background: linear-gradient(skyblue, khaki);
    perspective: 400px;
}

.box {
    width: 100px;
    height: 100px;
    transform-style: preserve-3d;
    transform: rotateX(-35deg) rotateY(30deg) rotateZ(0deg);
    animation: rotate linear 3s infinite;
}

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

.front {
    background: rgba(90, 90, 90, .7);
    transform: translateZ(50px);
}

.back {
    background: rgba(0, 210, 0, .7);
    transform: rotateY(180deg) translateZ(50px);
}

.right {
    background: rgba(210, 0, 0, .7);
    transform: rotateY(90deg) translateZ(50px);
}

.left {
    background: rgba(0, 0, 210, .7);
    transform: rotateY(-90deg) translateZ(50px);
}

.top {
    background: rgba(210, 210, 0, .7);
    transform: rotateX(90deg) translateZ(50px);
}

.bottom {
    background: rgba(210, 0, 210, .7);
    transform: rotateX(-90deg) translateZ(50px);
}
@keyframes rotate {
    0% {
        transform: rotateX(-35deg) rotateY(0deg) rotateZ(0deg)
    }
    100% {
        transform: rotateX(-35deg) rotateY(360deg) rotateZ(0deg)
    }
}