CSS实现下雪 抽奖转盘

CSS实现下雪和抽奖转盘是很有趣也很有挑战性的任务。以下是如何实现这两个效果的代码示例。

// 下雪特效
body {
  background-color: #000;
}

.sNow {
  position: fixed;
  top: -60px;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("https://i.imgur.com/9p9atON.png");
  z-index: 9999;
  pointer-events: none;
  animation: sNow 10s linear infinite;
}

@keyframes sNow {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  100% {
    transform: translateY(500px) rotate(360deg);
  }
}

// 抽奖转盘
.turntable {
  position: relative;
  width: 200px;
  height: 200px;
  background-image: url("https://i.imgur.com/9p9atON.png");
  background-size: cover;
}

.turntable:after {
  content: "";
  display: block;
  position: absolute;
  top: 50px;
  left: 50px;
  width: 100px;
  height: 100px;
  background-color: #fff;
  border-radius: 50%;
}

.turntable-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 200px;
  height: 200px;
  transform-origin: 100% 100%;
  animation: rotate 6s linear infinite;
}

.turntable-item:nth-child(odd) {
  background-color: #f58220;
}

.turntable-item:nth-child(even) {
  background-color: #fbbd08;
}

.turntable-item:nth-child(1) {
  transform: rotate(30deg);
}

.turntable-item:nth-child(2) {
  transform: rotate(60deg);
}

.turntable-item:nth-child(3) {
  transform: rotate(90deg);
}

.turntable-item:nth-child(4) {
  transform: rotate(120deg);
}

.turntable-item:nth-child(5) {
  transform: rotate(150deg);
}

.turntable-item:nth-child(6) {
  transform: rotate(180deg);
}

.turntable-item:nth-child(7) {
  transform: rotate(210deg);
}

.turntable-item:nth-child(8) {
  transform: rotate(240deg);
}

.turntable-item:nth-child(9) {
  transform: rotate(270deg);
}

.turntable-item:nth-child(10) {
  transform: rotate(300deg);
}

.turntable-item:nth-child(11) {
  transform: rotate(330deg);
}

@keyframes rotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

以上代码可以通过CSS实现下雪和抽奖转盘，当然还有更多有趣的CSS效果等待我们去探索。