前端小练习：案例4.3D图片旋转展示（旋转木马）
一.效果预览图
二.实现思路
1.实现旋转木马效果的第一步是先准备好自己需要的图片，创建html文件
2.旋转木马的实现，关键点在3D形变和关键帧动画。
3.步骤，定义一个div使其居中，，把图片放进div盒子里，因为图片需要3D形变，所以要给div设置3D环境，给图片设置定位或者使用弹性布局使其在相对的位置，要控制图片一定要在div中，否则关键帧动画旋转的时候整体会是倾斜的，根据图片的数量，合理控制图像的旋转角度，（通常使用 360度/图片数量=需要旋转的角度），最后设置z轴的移动距离和关键帧动画。
三.相关代码
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><style>*{margin: 0;padding: 0;perspective: 500000px;transform-style: preserve-3d;}.wp{width: 800px;height: 400px;perspective: 500000px;transform-style: preserve-3d;position: relative;margin: 200px auto;animation: xz 10s infinite linear;}img{width: 180px;height: 300px;position: absolute;left: 310PX;}.wp img:nth-child(1){transform: rotateY(0) translateZ(400px);}.wp img:nth-child(2){transform: rotateY(-30deg) translateZ(400px);}.wp img:nth-child(3){transform: rotateY(-60deg) translateZ(400px);}.wp img:nth-child(4){transform: rotateY(-90deg) translateZ(400px);}.wp img:nth-child(5){transform: rotateY(-120deg) translateZ(400px);}.wp img:nth-child(6){transform: rotateY(-150deg) translateZ(400px);}.wp img:nth-child(7){transform: rotateY(-180deg) translateZ(400px);}.wp img:nth-child(8){transform: rotateY(-210deg) translateZ(400px);}.wp img:nth-child(9){transform: rotateY(-240deg) translateZ(400px);}.wp img:nth-child(10){transform: rotateY(-270deg) translateZ(400px);}.wp img:nth-child(11){transform: rotateY(-300deg) translateZ(400px);}.wp img:nth-child(12){transform: rotateY(-330deg) translateZ(400px);}@keyframes xz{0%{transform: rotateX(-10deg);}100%{transform: rotateX(-10deg) rotateY(360deg);}}</style>
</head>
<body><div class="wp"><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""><img src="./image/wallhaven-pkgkkp.png" alt=""></div>
</body>
</html>