用CSS3实现一个魔方转动动画

*{
    margin: 0;
    padding: 0;
}

:root, body{
    height: 100%;
}

@keyframes round{
    0%{
        transform: rotateY(0deg) rotateX(0deg);
    }
    50%{
        transform: rotateY(360deg) rotateX(180deg);
    }
    100%{
        transform: rotateY(360deg) rotateX(360deg);
    }
}


body{
    perspective: 2000px;
    transform-style: preserve-3d;
}

div.wrapper{
    width: 400px;
    height: 400px;
    position: absolute;
    left: calc(50% - 200px);
    top: calc(50% - 200px);
    transform-style: preserve-3d;
    animation: round 10s linear infinite;
}

.content1,
.content2,
.content3,
.content4,
.content5,
.content6{
    position: absolute;
    height: 400px;
    width: 400px;
    line-height: 400px;
    text-align: center;
    color: #000;
    font-size: 20px;
}

.content1{
    background-color: #FFF68F;
    transform: translateZ(-200px);
}
.content6{
    background-color: #FF4500;
    transform: translateZ(200px);
}

.content2{
    background-color: #D15FEE;
    transform: translateX(200px) rotateY(90deg);
}
.content5{
    background-color: #008c8c;
    transform: translateX(-200px) rotateY(-90deg);
}

.content3{
    background-color: #8B2323;
    transform: translateY(200px) rotateX(-90deg);
}
.content4{
    background-color: #87CEEB;
    transform: translateY(-200px) rotateX(90deg);
}
<div class="wrapper">
        <div class="content1">1</div>
        <div class="content2">2</div>
        <div class="content3">3</div>
        <div class="content4">4</div>
        <div class="content5">5</div>
        <div class="content6">6</div>
</div>

效果如下