使用css的animation和transform和transition可以实现简单的图片放大缩小，旋转，位移的效果，由此可以延伸的动画效果还是挺多的，比如图片慢慢放大，图片慢慢旋转并放大，图片慢慢变化位置等等，
抽奖动画效果图
实现的原理也很简单，就是通过使用动画animation和关键动画帧来实现的，可以使用缩放来进行平滑的过渡效果，下面是源码：
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8" /><meta name="viewport" content="width=device-width, initial-scale=1.0" /><title>Document</title></head><body><div class="center"><div>抽奖效果</div><imgsrc="https://img-blog.csdnimg.cn/67fc9799ae8e48749e82cf70b179895b.png"class="card"/></div><style>.center {width: 500px;margin: 0 auto;text-align: center;}.card {width: 260px;height: 400px;animation: showImg 3s linear 1;}@keyframes showImg {0% {transform: scale(0.1) rotate(0);}50% {transform: scale(0.5) rotate(360deg);}100% {transform: scale(1) rotate(720deg);}}</style></body>
</html>
图片慢慢旋转动画
图片慢慢旋转是通过rotate来实现的，并且鼠标放上去之后，会有暂停的效果：下面的动图有卡顿的效果，实际情况非常丝滑
旋转图片的源代码：
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8" /><meta name="viewport" content="width=device-width, initial-scale=1.0" /><title>Document</title></head><body><div class="wrap"><div class="source"></div><div class="avatar"></div></div></body><style>body {background-color: black;padding-top: 100px;}.wrap {margin: 0 auto;display: flex;flex-direction: row;justify-content: center;align-items: center;}.source {width: 100px;height: 100px;margin-right: 20px;background-image: url('./assets/ball.png');background-position: center;background-size: 100% 100%;animation: circle 1s linear infinite;}.avatar {width: 100px;height: 100px;border-radius: 50%;background-image: url('https://profile-avatar.csdnimg.cn/f6acd04828d84240afc2739fe039fd49_weixin_44786530.jpg!1');background-position: center;background-size: 100% 100%;animation: circle 2s linear infinite;}.source:hover {animation-play-state: paused;}.avatar:hover {animation-play-state: paused;}@keyframes circle {0% {transform: rotate(0deg);}10% {transform: rotate(36deg);}20% {transform: rotate(72deg);}30% {transform: rotate(108deg);}40% {transform: rotate(144deg);}50% {transform: rotate(180deg);}60% {transform: rotate(216deg);}70% {transform: rotate(252deg);}80% {transform: rotate(288deg);}90% {transform: rotate(324deg);}100% {transform: rotate(360deg);}}</style>
</html>
