Expand/Collapse Widgets

What is HTML? ▼
HTML (HyperText Markup Language) is the standard markup language for creating web pages. It provides the structure and content of websites.
  • Used to create the structure of web pages
  • Works with CSS for styling
  • Works with JavaScript for interactivity
  • Tag-based markup system
CSS Features ▼
Cascading Style Sheets (CSS) is used to style and layout web pages. It can be used to make responsive designs and create beautiful visual effects.
  • Color and typography control
  • Layout with Flexbox and Grid
  • Responsive design with media queries
  • Animations and transitions
JavaScript Capabilities ▼
JavaScript is a programming language that enables interactive web pages. It can update content, control multimedia, animate images, and much more.
  • DOM manipulation
  • Event handling
  • Asynchronous operations
  • API integration
// Toggle example
const headers = document.querySelectorAll('.example-header');
headers.forEach(header => {
  header.addEventListener('click', () => {
    header.parentElement.classList.toggle('active');
  });
});
Web Development Best Practices ▼
Follow industry standards to create maintainable and performant web applications.
  • Write semantic HTML
  • Keep CSS organized and modular
  • Write clean, readable JavaScript
  • Test your code thoroughly
  • Optimize for performance and accessibility