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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example of CSS Class Selector</title> <style> .paragraph { color:#11a286; font-size:18px; } </style> </head> <body> <h1>This is a heading.</h1> <p class="paragraph">This is a paragraph.</p> <p>This is a paragraph.</p> </body> </html>