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<!DOCTYPE html> <html> <head> <style> h1 { text-decoration: overline; } h2 { text-decoration: line-through; } h3 { text-decoration: underline; } </style> </head> <body> <h1>This is heading 1</h1> <h2>This is heading 2</h2> <h3>This is heading 3</h3> </body> </html>