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<!DOCTYPE html> <html> <head> <title>Xem ví dụ</title> <style type="text/css"> div{ border:5px dotted red; } </style> </head> <body> <div> <p>border:5px dotted red;</p> <p><==></p> <ul> <li>border-width:5px;</li> <li>border-style:dotted;</li> <li>border-color:red;</li> </ul> </div> </body> </html>
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