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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Example of CSS content property</title> <style> p:before { content: "Note: "; display: inline; } </style> </head> <body> <p>The word "Note:" is inserted before this paragraph using CSS at runtime. IE8 supports the content property only if a !DOCTYPE is specified.</p> </body> </html>
