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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example of CSS border property</title> <style> h1 { border: 5px solid #ff0000; } p { color: #00ff00; border: 5px solid; } </style> </head> <body> <h1>This is a heading.</h1> <p>This is a paragraph.</p> </body> </html>
