十分鐘實現節日祝福動畫，CSS+JavaScript實現元旦祝福動畫，祝大家元旦快樂

阿新 • • 發佈：2021-01-03

視訊
視訊地址：https://www.bilibili.com/video/BV1v54y1t7zn
參考程式碼
HTML:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>元旦快樂:公眾號AlbertYang</title>
    <link rel="stylesheet" href="style.css">
  </head>
  <body>
    <p>
      <div class="box">
        <dic class="circle">
          <div class="text">
            <span style="--x:0">元</span>
            <span style="--x:1">旦</span>
            <br />
            <span style="--x:2">快</span>
            <span style="--x:3">樂</span>
          </div>
        </dic>
      </div>
    </p>
    <script>
      const bubbles = () => {
        let count = 300;
        let p = document.querySelector("p");
        for (let i = 0; i < count; i++) {
          let bubble = document.createElement('i');
          let x = Math.floor(Math.random() * window.innerWidth);
          y = Math.floor(Math.random() * window.innerHeight);
 
 
          let size = Math.random() * 60;
          bubble.style.left = x + 'px';
          bubble.style.top = y + 'px';
          bubble.style.width = size + 'px';
          bubble.style.height = size + 'px';
          bubble.style.animationDuration = 5 + size + 's';
          bubble.style.animationDelay = -size + 's';
 
 
          p.appendChild(bubble);
        }
      }
      bubbles()
</script>
  </body>
</html>

CSS:

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
 
 
body {
  overflow: hidden;
}
 
 
p {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #f1f1f1;
}
 
 
p .box {
  position: absolute;
  width: 450px;
  height: 450px;
}
 
 
p .box .circle {
  position: relative;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #fff, #e4e3e8);
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
}
 
 
p .box .circle::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 5px;
  right: 5px;
  bottom: 5px;
  background: linear-gradient(315deg, #fff, #e4e3e8);
  border-radius: 50%;
  z-index: 1;
}
 
 
p .text {
  position: absolute;
  font-size: 6em;
  color: #ff2a2a;
  z-index: 2;
}
 
 
p .text span {
  display: inline-block;
  animation: blink 3s 2s infinite;
  animation-delay: calc(var(--x) * 0.5s);
}
 
 
p i {
  position: absolute;
  background: #FF2A2A;
  border-radius: 50%;
  animation: animate linear infinite;
}
 
 
p i:nth-child(even) {
  background: transparent;
  border: 1px solid #FF2A2A;
}
 
 
@keyframes animate {
  0% {
    transform: translateY(0);
    opacity: 0;
    filter: hue-rotate(0deg);
  }
 
 
  10%,
  90% {
    opacity: 1;
  }
 
 
  100% {
    transform: translateY(-3000%);
    opacity: 0;
    filter: hue-rotate(36000deg);
  }
}
 
 
@keyframes blink {
  0% {
    transform: scale(0);
    opacity: 0;
    filter: hue-rotate(0deg);
  }
 
 
  30%,
  50%,
  80% {
    transform: scale(1.3);
    opacity: 1;
  }
 
 
  100% {
    transform: scale(0);
    opacity: 0;
    filter: hue-rotate(3600deg);
  }
}

在這裡插入圖片描述