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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example of CSS class selector</title> <style> .blue { color: #0000ff; } </style> </head> <body> <h1 class="blue">This is a heading</h1> <p class="blue">This is a paragraph.</p> <p>This is another paragraph.</p> </body> </html>
