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<!DOCTYPE html> <html> <head> <style> body { font-family: sans-serif; padding: 20px; background: #0f172a; color: #e2e8f0; } h1 { color: #38bdf8; } </style> </head> <body> <h1>Hello, World!</h1> <p>Edit this code and click Run ▶</p> <script> console.log("Script running!"); </script> </body> </html>
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