<!DOCTYPE html>
<!-- main.html -->
<html lang="en">
  <head>
    <meta charset="utf-8">
    <link rel="stylesheet" type="text/css" href="style.css">
    <title>My first HTML document</title>
  </head>
  <body>
    <h1>Hello World</h1>
    <p>This is a web page.</p>
  </body>
</html>
/* style.css */
body {
  background: yellow;
  text-align: center;
}

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