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October 18, 2025 04:06
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>HTML5 & CSS3 Animation Example</title> | |
| <style> | |
| body { | |
| font-family: Arial, sans-serif; | |
| margin: 0; | |
| padding: 0; | |
| background-color: #f0f8ff; | |
| text-align: center; | |
| } | |
| header { | |
| background-color: #0078d7; | |
| color: white; | |
| padding: 20px; | |
| animation: fadeIn 2s; | |
| } | |
| nav { | |
| background-color: #333; | |
| padding: 10px 0; | |
| } | |
| nav a { | |
| color: white; | |
| text-decoration: none; | |
| padding: 10px 20px; | |
| display: inline-block; | |
| } | |
| nav a:hover { | |
| background-color: #0078d7; | |
| } | |
| main { | |
| padding: 20px; | |
| } | |
| section { | |
| margin: 20px auto; | |
| max-width: 600px; | |
| background: white; | |
| border-radius: 10px; | |
| padding: 20px; | |
| box-shadow: 0 0 10px rgba(0, 0, 0, 0.2); | |
| animation: slideIn 1.5s ease-out; | |
| } | |
| h1, h2 { | |
| margin-bottom: 10px; | |
| } | |
| .blink { | |
| color: red; | |
| font-weight: bold; | |
| animation: blink 1s infinite; | |
| } | |
| @keyframes blink { | |
| 0%, 50%, 100% { opacity: 1; } | |
| 25%, 75% { opacity: 0; } | |
| } | |
| @keyframes fadeIn { | |
| from { opacity: 0; } | |
| to { opacity: 1; } | |
| } | |
| @keyframes slideIn { | |
| from { transform: translateY(30px); opacity: 0; } | |
| to { transform: translateY(0); opacity: 1; } | |
| } | |
| footer { | |
| background-color: #0078d7; | |
| color: white; | |
| padding: 10px; | |
| margin-top: 30px; | |
| } | |
| button { | |
| background-color: #0078d7; | |
| color: white; | |
| border: none; | |
| padding: 10px 15px; | |
| border-radius: 5px; | |
| cursor: pointer; | |
| transition: background-color 0.3s; | |
| } | |
| button:hover { | |
| background-color: #005fa3; | |
| } | |
| .move-box { | |
| width: 100px; | |
| height: 100px; | |
| background-color: orange; | |
| margin: 20px auto; | |
| border-radius: 10px; | |
| animation: moveAround 4s infinite alternate; | |
| } | |
| @keyframes moveAround { | |
| 0% { transform: translateX(0); } | |
| 50% { transform: translateX(100px); } | |
| 100% { transform: translateX(0); } | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <header> | |
| <h1>Welcome to HTML5 & CSS3 Demo</h1> | |
| <p>Learn web animations the fun way!</p> | |
| </header> | |
| <nav> | |
| <a href="#home">Home</a> | |
| <a href="#about">About</a> | |
| <a href="#contact">Contact</a> | |
| </nav> | |
| <main> | |
| <section id="home"> | |
| <h2>What is HTML5?</h2> | |
| <p>HTML5 is the latest version of HyperText Markup Language used to structure web pages.</p> | |
| <p class="blink">This text is blinking!</p> | |
| </section> | |
| <section id="about"> | |
| <h2>What is CSS3?</h2> | |
| <p>CSS3 adds style, colors, animations, and layouts to make web pages look beautiful.</p> | |
| <div class="move-box"></div> | |
| </section> | |
| <section id="contact"> | |
| <h2>Try an Interactive Button</h2> | |
| <p>Click below to change the background color!</p> | |
| <button onclick="changeColor()">Change Background</button> | |
| </section> | |
| </main> | |
| <footer> | |
| <p>© 2025 HTML & CSS Learning Demo</p> | |
| </footer> | |
| <script> | |
| function changeColor() { | |
| const colors = ["#f0f8ff", "#fff3cd", "#e6ffe6", "#ffe6f2"]; | |
| document.body.style.backgroundColor = colors[Math.floor(Math.random() * colors.length)]; | |
| } | |
| </script> | |
| </body> | |
| </html> |
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