CSS 3.0实现泡泡特效

给大家分享一个用CSS 3.0实现的泡泡特效，效果如下：
以下是代码实现，欢迎大家复制、粘贴和收藏。
代码语言：javascript复制
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>CSS 3.0实现泡泡特效</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }

    section {
      position: relative;
      width: 100%;
      height: 100vh;
      overflow: hidden;
      background: #111;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    section h2 {
      font-size: 10em;
      color: #333;
    }

    section span {
      position: absolute;
      bottom: -50px;
      background: transparent;
      border-radius: 50%;
      pointer-events: none;
      box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.5);
      animation: animate 4s linear infinite;
    }

    section span::before {
      content: '';
      position: absolute;
      width: 100%;
      height: 100%;
      transform: scale(0.25) translate(-70%, -70%);
      background: radial-gradient(#fff, transparent);
      border-radius: 50%;
    }

    @keyframes animate {
      0% {
        transform: translateY(0%);
        opacity: 1;
      }

      99% {
        opacity: 1;
      }

      100% {
        transform: translateY(-1200%);
        opacity: 0;
      }
    }
  </style>
</head>

<body>
  <section>
    <h2>Bubbles</h2>
  </section>
  <script>
    function createBubble() {
      const section = document.querySelector('section')
      const createElement = document.createElement('span')

      let size = Math.random() * 60
      createElement.style.width = 20   size   'px'
      createElement.style.height = 20   size   'px'
      createElement.style.left = Math.random() * innerWidth   'px'
      section.append(createElement)
      setTimeout(() => {
        createElement.remove()
      }, 4000)
    }
    setInterval(createBubble, 50)
  </script>
</body>

</html>
特效
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