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心形特效代码html

心形特效代码html


<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>心形特效</title>
<style>
  /* 给body添加背景图片 */
  body {
    background-image: url("bg.jpg");
  }
  /* 设置心形样式 */
  .heart {
    position: absolute;
    height: 50px;
    width: 50px;
    background-color: red;
    transform: rotate(45deg);
  }
  .heart::before,
  .heart::after {
    content: "";
    position: absolute;
    height: 50px;
    width: 50px;
    background-color: red;
  }
  .heart::before {
    top: -25px;
    border-radius: 25px 25px 0 0;
  }
  .heart::after {
    left: -25px;
    border-radius: 0 25px 25px 0;
  }
  /* 给按钮添加点击事件 */
  .btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    color: black;
    padding: 10px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  /* 设置动画效果 */
  .heart {
    animation: heartbeat 1s infinite;
  }
  @keyframes heartbeat {
    from {
      transform: scale(1);
    }
    to {
      transform: scale(1.5);
    }
  }
</style>
</head>
<body>
  <button class="btn">
    点我生成心形特效
  </button>
  <script>
    // 获取按钮元素
    const btn = document.querySelector(".btn");
    // 点击按钮生成心形特效
    btn.addEventListener("click", function() {
      // 生成心形元素
      const heart = document.createElement("div");
      heart.classList.add("heart");
      // 设置心形的位置
      heart.style.top = `${Math.random() * 100}%`;
      heart.style.left = `${Math.random() * 100}%`;
      // 将心形添加到body中
      document.body.appendChild(heart);
      // 2秒后删除心形
      setTimeout(function() {
        heart.remove();
      }, 2000);
    });
  </script>
</body>
</html>