HTML Code

<!DOCTYPE html>
<html lang=en>
<head>
  <meta charset=UTF-8>
  <meta name=viewport content="width=device-width,initial-scale=1">
  <title>id — page sections</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 1rem;font-size:1.25rem;color:#0f172a}#footer,#header,#main-content{max-width:420px;padding:.85rem 1rem;margin-bottom:.75rem;background:#fff;border:1px solid #e2e8f0;border-radius:8px}#header{border-left:4px solid #2563eb}#footer{border-left:4px solid #64748b;font-size:.875rem}a{color:#2563eb}.hint{margin-top:1rem;font-size:.8125rem;color:#64748b;max-width:420px}code{background:#e2e8f0;padding:.1rem .35rem;border-radius:4px}</style>
</head>
<body>
  <h1>id — unique identifiers</h1>
  <p><a href=#footer>Jump to footer</a></p>

  <div id=header>
    <strong>Header</strong> — <code>id="header"</code>
  </div>

  <p id=main-content>Main content — <code>id="main-content"</code>. Each id must be unique in the document.</p>

  <div id=footer>&copy; 2026 My Website. All rights reserved.</div>

  <p class=hint><code>href="#footer"</code> scrolls to the element with <code>id="footer"</code>.</p>
</body>
</html>

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HTML id Attribute — Page Sections & Fragment Links