html5——3D案例（立方体）

立方体：父盒子规定了3d呈现属性，立方体做旋转运动

移动顺序：1、每个盒子都先移动100px，然后再做相应的旋转 2、只有这样立方体的几何中心点与父盒子的几何中心点是一样的

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        .square {
            width: 200px;
            height: 200px;
            margin: 150px auto;
            border: 1px solid #000;
            border-radius: 50%;
            position: relative;
            transform-style: preserve-3d;
            text-align: center;
            font: 500 40px/200px "Microsoft YaHei UI";
            /*transform: rotateX(-16deg) rotateY(17deg);*/
            animation: gun 3s infinite linear;
        }

        .square > div {
            width: 100%;
            height: 100%;
            position: absolute;
            top: 0;
            left: 0;
            opacity: 0.6;
            /*border: 1px solid #fff;*/
        }

        .front {
            background-color: orange;
            transform: translateZ(100px);
        }

        .back {
            background-color: green;
            transform: translateZ(-100px) rotateY(180deg);
        }

        .left {
            background-color: blue;
            transform: translateX(-100px) rotateY(-90deg);
        }

        .right {
            background-color: silver;
            transform: translateX(100px) rotateY(90deg);
        }

        .top {
            background-color: yellow;
            transform: translateY(-100px) rotateX(90deg);
        }

        .bottom {
            background-color: yellow;
            transform: translateY(100px) rotateX(-90deg);
        }

        @keyframes gun {
            0% {
                transform: rotateX(0deg) rotateY(0deg);

            }
            100% {
                transform: rotateX(360deg) rotateY(360deg);
            }
        }
    </style>
</head>
<body>
<!--正方形-->
<div class="square">
    <div class="left">左</div>
    <div class="right">右</div>
    <div class="top">上</div>
    <div class="bottom">下</div>
    <div class="front">前</div>
    <div class="back">后</div>
</div>
</body>
</html>