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HTML 查看器
编辑 HTML 代码并查看实时预览，支持响应式设计测试。
Code
Preview
HTML Code
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>HTML Preview</title> <style> body { font-family: Arial, sans-serif; margin: 20px; } .example { background-color: #f0f0f0; padding: 20px; border-radius: 5px; } </style> </head> <body> <h1>Welcome to HTML Viewer</h1> <div class="example"> <p>This is a sample HTML document. Edit the code on the left to see changes here.</p> <button onclick="alert('Hello World!')">Click me!</button> </div> </body> </html>
Live Preview
(1200×800)