CSS\JS实现页面背景气泡logo上浮效果

效果图：

单容器显示气泡：

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Bubble Logo Animation</title></head>
<body><div class="bubble-container"><!-- 气泡将会动态添加到这里 --></div></body><style>
body, html {margin: 0;padding: 0;width: 100%;height: 100%;overflow: hidden;background-color: #ffffff; /* 背景颜色 */display: flex;justify-content: center;align-items: center;
}.bubble-container {position: relative;width: 100%;height: 100%;
}.bubble {position: absolute;bottom: -50px; /* 从页面底部开始 */width: 100px;height: 100px;opacity: 0.8;animation: floatUp 10s infinite;
}.bubble img {width: 100%;height: 100%;object-fit: contain;
}/* 气泡上浮动画 */
@keyframes floatUp {0% {transform: translateY(0) scale(1);opacity: 1;}100% {transform: translateY(-100vh) scale(1.2);opacity: 0;}
}</style><script>
const bubbleContainer = document.querySelector('.bubble-container');function createBubble() {const bubble = document.createElement('div');bubble.className = 'bubble';bubble.style.left = `${Math.random() * 100}vw`; // 随机水平位置bubble.style.animationDuration = `${5 + Math.random() * 5}s`; // 随机动画时长bubble.innerHTML = `<img src="https://img-home.csdnimg.cn/images/20201124032511.png" alt="Logo">`;bubbleContainer.appendChild(bubble);// 动画结束后移除气泡bubble.addEventListener('animationend', () => {bubble.remove();});
}// 定期生成新的气泡
setInterval(createBubble, 1000);</script>
</html>

全屏显示气泡：

<div class="one" style="width: 100%;height: 300px;background-color: pink;"></div><div class="bubble-container"><!-- 气泡将会动态添加到这里 --></div><style>.one {width: 100%;height: 300px;background-color: pink;z-index: 1;position: relative;}/* 覆盖整个页面的气泡容器 */.bubble-container {position: fixed; /* 使容器固定在页面上 */top: 0;left: 0;width: 100%;height: 100%;pointer-events: none; /* 确保气泡不影响页面其他内容的交互 */z-index: 9999; /* 将气泡放在最前面 */}.bubble {position: absolute;bottom: -50px;width: 75px;height: 75px;opacity: 0.5;animation: floatUp 10s infinite;}.bubble img {width: 100%;height: 100%;object-fit: contain;}/* 气泡上浮动画 */@keyframes floatUp {0% {transform: translateY(0) scale(1);opacity: 0.8;}100% {transform: translateY(-100vh) scale(1.2);opacity: 0;}}</style><script>
const bubbleContainer = document.querySelector('.bubble-container');function createBubble() {const bubble = document.createElement('div');bubble.className = 'bubble';bubble.style.left = `${Math.random() * 100}vw`; // 随机水平位置bubble.style.animationDuration = `${5 + Math.random() * 5}s`; // 随机动画时长bubble.innerHTML = `<img src="https://img-home.csdnimg.cn/images/20201124032511.png" alt="Logo">`;bubbleContainer.appendChild(bubble);// 动画结束后移除气泡bubble.addEventListener('animationend', () => {bubble.remove();});
}// 定期生成新的气泡
setInterval(createBubble, 5000);</script>

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