Expand/Collapse Widget Demo

HTML (HyperText Markup Language) is the standard markup language for creating web pages. It provides the structure and content of websites, working together with CSS for styling and JavaScript for interactivity.

Key features include:

• Semantic elements for proper document structure
• Form controls for user input
• Media embedding capabilities
• Accessibility features for inclusive design

To start web development, you need to learn three core technologies:

• HTML - Structure and content
• CSS - Styling and layout
• JavaScript - Interactivity and behavior

Begin by mastering HTML fundamentals, then progress to CSS for styling, and finally JavaScript for dynamic functionality.

Creating accessible web content ensures everyone can use your website, including people with disabilities. Important practices include:

• Using semantic HTML elements
• Providing alternative text for images
• Ensuring keyboard navigation support
• Using proper heading hierarchy
• Providing sufficient color contrast
• Including ARIA labels where needed

HTML provides various elements for different content types:

• <header> - Introductory content or navigation
• <nav> - Navigation links
• <main> - Main content of the page
• <article> - Self-contained content
• <section> - Grouped thematic content
• <footer> - Footer information
• <aside> - Sidebar or supplementary content