HTML Code

<!DOCTYPE html>

<html lang=en version=4.01>

<head>

  <meta charset=UTF-8>

  <meta name=viewport content="width=device-width,initial-scale=1">

  <title>version — legacy example</title>

  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 .75rem;font-size:1.25rem;color:#0f172a}.note{margin-top:1rem;padding:.75rem 1rem;background:#fef3c7;border-radius:8px;font-size:.875rem}</style>

</head>

<body>

  <h1>Hello, World!</h1>

  <p>This page shows the obsolete <code>version</code> attribute on <code>&lt;html&gt;</code>.</p>



  <p class=note><strong>Learning note:</strong> Browsers ignore this in HTML5. Use <code>&lt;!DOCTYPE html&gt;</code> instead.</p>

</body>

</html>

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HTML version Attribute — legacy html element