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Topic #105

HTML Document Structure

Every HTML document follows the same basic skeleton — a doctype, an <html> root with a <head> and a <body>. Get this right once and every page you build starts from it.

Complete Example

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Example Page</title>
</head>
<body>
    <header>
        <h1>Example Website</h1>
    </header>

    <main>
        <p>This is an example HTML document.</p>
    </main>

    <footer>
        <p>&copy; 2026 Example Site</p>
    </footer>
</body>
</html>

Breaking It Down

PartPurpose
<!DOCTYPE html>Tells the browser to use standards-compliant HTML5 rendering. See HTML Doctype.
<html lang="en">The root element; lang tells browsers and screen readers what language the page is in. See lang attribute.
<head>Metadata — not visible content: charset, viewport, title, links to CSS. See HTML Head.
<body>Everything the visitor actually sees. See HTML Body.

Practical Use Case

This exact skeleton is what every static site generator, framework template, and code editor's HTML boilerplate produces — it's worth being able to type it from memory rather than always relying on a snippet tool.

Common Mistakes

  • Forgetting <meta charset="UTF-8"> — special characters (₹, é, emoji) can render as garbled text without it
  • Omitting the viewport meta tag — the page won't scale correctly on mobile devices, a critical, easily-missed error
  • Putting visible content inside <head> — nothing there is meant to be displayed on the page itself
  • Nesting block-level structural tags outside of <body> by mistake

Interview Relevance

Being asked to "write a basic HTML page from scratch" is common in junior frontend interviews — practice this structure until it's automatic, including the meta tags most beginners forget.

Practice Question

Write a complete HTML document for a simple "Contact Us" page with a heading and one paragraph, including proper charset and viewport meta tags.

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