HTML (HyperText Markup Language) is the standard markup language used to create web pages. It describes the structure and content of web documents using elements and tags, forming the foundation of all websites.

Key Features

  • Semantic Structure: Provides meaning to content through semantic elements
  • Cross-Platform: Works on all devices and browsers
  • Accessibility: Supports screen readers and assistive technologies
  • SEO-Friendly: Search engines can easily parse HTML content
  • Integration: Works seamlessly with CSS and JavaScript

Basic HTML Structure

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Page Title</title>
</head>
<body>
    <header>
        <h1>Main Heading</h1>
        <nav>
            <ul>
                <li><a href="#">Home</a></li>
                <li><a href="#">About</a></li>
            </ul>
        </nav>
    </header>
    
    <main>
        <section>
            <h2>Section Heading</h2>
            <p>This is a paragraph.</p>
        </section>
    </main>
    
    <footer>
        <p>© 2025 Your Website</p>
    </footer>
</body>
</html>

HTML5 Semantic Elements

Common Semantic Elements:

  • <header> - Page or section header
  • <nav> - Navigation links
  • <main> - Main content area
  • <section> - Thematic grouping of content
  • <article> - Independent, self-contained content
  • <aside> - Sidebar content
  • <footer> - Page or section footer

Career Impact

100%
of web developers use HTML
$65K+
Entry-level salary
1.8B
websites worldwide

HTML is the fundamental building block of web development. Every web developer must master HTML to create structured, accessible, and SEO-friendly websites.