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Selectors trong CSS
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>CSS</title> <style type="text/css" media="screen"> ul li:first-letter{ color: red; } </style> </head> <body> <ul> <li>Thẻ li 1</li> <li>Thẻ li 2</li> <li>Thẻ li 3</li> <li>Thẻ li 4</li> <li>Thẻ li 5</li> </ul> </body> </html>
