CodePen Embed - OJxXEWw

<head>

  <link rel="stylesheet" href="main.css">

  <style>

    p{

      color: saddlebrown;

    }

    h1{

      color: salmon;

    }

  </style>

</head>

<body>

  <p style="color: slategray;">Hello World
  </p>

  <h1 style="color: brown;">tiêu đề 1</h1>

</body>

p{
  color: gray;
}
h1{
  color: red;
}

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