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Thuộc tính opacity trong CSS3
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Toidicode.com học CSS</title> <style type="text/css" media="screen"> p{ background-color: orange; padding: 10px; text-align: center; } .p1{ opacity: 1; } .p2{ opacity: 0.5; } .p3{ opacity: 0.25; } .p4{ opacity: 0.1; } </style> </head> <body> <p class="p1">opacity 1</p> <p class="p2">opacity 0.5</p> <p class="p3">opacity 0.25</p> <p class="p4">opacity 0.1</p> </body> </html>
