<!DOCTYPE html> <html> <head> <style> body { background: #000; overflow: hidden; } .star { position: absolute; background: #fff; border-radius: 50%; animation:闪烁 1s infinite; } @keyframes 闪烁 { 50% { opacity: 0.3; } } </style> </head> <body> <div id="nightSky"></div> <h1 style="color: #ff69b4; text-align: center; animation:浮动 2s ease-in-out infinite;"


这段代码创建了一个简单的星空效果,星星会随机出现在页面上,并且会闪烁。以下是代码的详细解释: 1. HTML部分: - `<!DOCTYPE html>` 声明文档类型为HTML5。 - `<html>` 标签是HTML文档的根元素。 - `<head>` 标签包含了文档的元数据,如样式和脚本。 - `<body>` 标签包含了页面的内容。 2. CSS部分: - `body` 样式设置了颜色为黑色,并隐藏了溢出内容。 - `.star` 类定义了星星的样式,包括绝对定位、白色、圆形边框和闪烁动画。 - `@keyframes 闪烁` 定义了星星的闪烁动画,50%时透明度变为0.3。 3. JavaScript部分: - `createStar` 函数用于创建星星元素,并随机设置其位置和大小。 - `setInterval(createStar, 500)` 每500毫秒调用一次 `createStar` 函数,生成新的星星。 - `setTimeout(() => star.remove(), 10000)` 在10秒后移除星星。 代码优化建议: 1. 性能优化: - 频繁创建和移除DOM元素可能会影响性能。可以考虑使用对象池技术来复用星星元素,减少DOM操作。 2. 动画优化: - 使用 `requestAnimationFrame` 代替 `setInterval` 来控制动画的帧率,以获得更平滑的动画效果。 3. 代码可读性: - 将CSS动画名称改为英文,如 `twinkle`,以提高代码的可读性和维护性。 额外需要注意的逻辑点: 1. 星星的生成频率: - 当前的生成频率是每500毫秒生成一颗星星,可以根据需要调整这个频率。 2. 星星的移除时间: - 星星在10秒后会被移除,可以根据需要调整这个时间。 3. 星星的大小范围: - 星星的大小在0到3像素之间随机生成,可以根据需要调整这个范围。 通过这些优化和调整,可以使代码更加高效和易于维护。 [2025-03-16 00:00:00 | AI写代码神器 | 460点数解答]
- <!DOCTYPE html> <html> <head> <style> body { background: #000; overflow: hidden; } .star { position: absolute; background: #fff; border-radius: 50%; animation:闪烁 1s infinite; } @keyframes 闪烁 { 50% { opacity: 0.3; } } </style> </head> <body> <div id="nightSky"></div> <h1 style="color: #ff69b4; text-align: center; animation:浮动 2s ease-in-out infinite;"(171点数解答 | 2025-03-15 23:59:30)154
- <!DOCTYPE html> <html> <head> <style> body { background: #000; overflow: hidden; } .star { position: absolute; background: #fff; border-radius: 50%; animation:闪烁 1s infinite; } @keyframes 闪烁 { 50% { opacity: 0.3; } } </style> </head> <body> <div id="nightSky"></div> <h1 style="color: #ff69b4; text-align: center; animation:浮动 2s ease-in-out infinite;"(460点数解答 | 2025-03-16 00:00:00)116
- <!DOCTYPE html> <html> <head> <style> body { margin: 0; overflow: hidden; background: black; } #G { position: absolute; top: 20%; left: 10%; font-size: 80px; color: white; animation: blink 7s infinite; } #Y { position: absolute; top: 45%; left: 40%; font-size: 100px; color: transparent; text-shadow: 0 0 5px red; animation: crack 30s infinite; } #Q { position: absolute; top: 70%; left: 70%; font-size: 60px; color: cyan; animation: run 60s linear infinite; } (172点数解答 | 2025-05-11 19:18:28)104
- <!DOCTYPE html> <html> <head> <style> .container { width: 100vw; height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; background: #000; } .text { position: absolute; color: white; font-size: 2em; font-family: Arial; opacity: 0; white-space: nowrap; } @keyframes slide { 0% { transform: translateX(-100%); opacity: 0; } 20% { opacity: 1; } 80% { opacity: 1; } 100% { transform: translateX(100%); opacity: 0; } } </styl(114点数解答 | 2025-05-16 16:06:30)111
- <!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="UTF-8"> <style> .pink-circle { width: 100px; height: 100px; border-radius: 50%; background-color: pink; position: relative; animation: circlePulse 2s infinite ease-in-out; } .heart1, .heart2 { position: absolute; background-color: white; border-radius: 50% 50% 0 0; } .heart1 { top: 20px; left: 25px; width: 30px; height: 30px; (1225点数解答 | 2025-06-14 11:36:50)88
- <!DOCTYPE html> <style> .poster { width: 3000px; height: 1500px; background: linear-gradient(#6ec3f4 50%, #ff9933 50%); position: relative; } .icecream { /* 冰淇淋造型CSS动画 */ position: absolute; top: 15%; animation: melt 3s infinite; } @keyframes melt { 0% { transform: scaleY(1); } 50% { transform: scaleY(0.9); } 100% { transform: scaleY(1); } } .chestnut { /* 栗子动效 */ position: absolute; bottom: 20%; animation: pop 2s infinite; } @keyframes pop { 50% { transform: scale(1.2); } } .qr-code { /* 动态二维码区(164点数解答 | 2025-02-02 09:23:12)167
- <!doctype html> <html> <head> <title>code rain with dragon</title> <style> body { background-color: #000; overflow: hidden; font-family: monospace; color: #0f0; } #dragon { position: absolute; top:50%; left:50%; transform: translate(-50%, -50%); font-size:30px; } .code { position: absolute; color: #0f0; } </style> </head> <body> <div id="dragon"></div> <script> const dragon = document.getelementbyid('dragon'); const coderain = []; const codechars = 'abcdefghijklmnopq(537点数解答 | 2024-08-23 20:17:08)764
- def fill_and_submit_form(row): print("填充表单并提交...") wait = webdriverwait(driver, 5) # 增加等待时间 try: product_name_input = wait.until(ec.presence_of_element_located((by.xpath, '//*[@id="wcontentpanel"]/div[3]/div/div[2]/form/div[1]/div[3]/div/div/div[1]/input'))) product_category_dropdown = wait.until(ec.element_to_be_clickable((by.xpath, '//*[@id="wcontentpanel"]/div[3]/div/div[2]/form/div[1]/div[4]/div/div/div/span/span/div/div[1]'))) time.sleep(2) # 等待完成(361点数解答 | 2024-11-11 21:56:42)223
- <!DOCTYPE html> <html> <head> <style> .container { background: linear-gradient(#1A1A1A, #3A3A3A); width: 1080px; height: 1920px; color: white; position: relative; font-family: Arial, sans-serif; } .tag { background: #FF3B30; padding: 8px; width: 120px; text-align: center; position: absolute; top: 20px; left: 20px; border-radius: 5px; } .qr-code { position: absolute; bottom: 50px; right: 50px; width: 160px; } </style> </head> <body> <div class="container"> <div class="tag">国行正品 CCC</div> <h1 styl(485点数解答 | 2025-02-28 13:54:27)156
- <!DOCTYPE html> <html> <head> <style> /* 动态卡片容器 */ .invitation-card { max-width: 600px; margin: 20px auto; background: linear-gradient(135deg, #FFD6E8 0%, #BFF0FF 100%); border-radius: 20px; padding: 30px; box-shadow: 0 8px 20px rgba(0,0,0,0.1); font-family: '微软雅黑', sans-serif; position: relative; overflow: hidden; } /* 动态云朵装饰 */ .cloud { position: absolute; background: white; border-radius: 50px; opacity: 0.8; animation: float 8s infinite; } .cloud::before,.cloud::a(407点数解答 | 2025-03-03 14:38:27)123
- <!DOCTYPE html> <html> <head> <style> .wheel { width: 300px; height: 300px; border-radius: 50%; position: relative; overflow: hidden; border: 3px solid #333; transition: transform 3s ease-out; } .segment { position: absolute; width: 100%; height: 100%; clip-path: polygon(50% 50%, 100% 50%, 100% 0); transform-origin: center; (183点数解答 | 2025-03-26 11:53:58)129
- <!DOCTYPE html> <html> <head> <style> .logo-container { width: 200px; height: 200px; position: relative; animation: float 3s ease-in-out infinite; } @keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } } .sport-circle { fill: none; stroke-width: 8; stroke-linecap: round; stroke-dasharray: 100; animation: rotate 20s linear infinite; } @keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } } .(183点数解答 | 2025-03-14 20:35:45)124