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Selector trong CSS3
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Học CSS3 toidicode.com</title> </head> <style type="text/css" media="screen"> span{ display: block; } div:first-of-type{ background-color: orange; } </style> <body> <p>Thẻ p</p> <div>Thẻ div</div> <span>Thẻ span</span> <span> <div>Thẻ p nằm trong thẻ span</div> </span> </body> </html>
