<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>My First Web Page</title>
  </head>
  <body>
    <h1>My First Document</h1>
  </body>
</html>
h1 {color: blue;
font-family: sans serif;
text-align: center;}

External CSS

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External JavaScript

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