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<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=2.0"> <style> html { scrollbar-width: none; } body { height: 3000px; margin: 0; } div { position: fixed; top: -50px; width: 100px; height: 100px; background: green; } </style> </head> <body> <div></div> </body> </html>