html-important.html

<html>
  <head>
    <title>Coba Induk CSS</title>
    <link rel="stylesheet" type="text/css" href="css-important.css" media="screen">
    <style>
      body {
        background: #000;
      }
    </style>
  </head>
  <body>
    <div id="a1" style="background: #f00; width: 400px; height: 300px;">
    </div>
  </body>
</html>