Expand/Collapse Widgets

What is HTML? Basic ▼

HTML (HyperText Markup Language) is the standard markup language used to create web pages. It provides the structure and content of websites by using a system of tags and elements.

Key features:

  • Semantic markup with meaningful tags
  • Support for multimedia elements
  • Form creation and validation
  • Accessibility features
CSS Styling Features Intermediate ▼

CSS (Cascading Style Sheets) is used to style and layout web pages. It allows you to control colors, fonts, spacing, and positioning of HTML elements.

Popular CSS features:

  • Flexbox and Grid layouts
  • CSS Transitions and Animations
  • Media Queries for responsive design
  • CSS Variables and custom properties
JavaScript Interactivity Advanced ▼

JavaScript is a programming language that enables interactive web pages. It can update content, control multimedia, animate images, and much more.

Common JavaScript uses:

  • DOM manipulation and event handling
  • Asynchronous operations with Promises and async/await
  • API requests and data fetching
  • Building interactive user interfaces
Code Example Demo ▼

Here's an example of a simple expand/collapse implementation:

<div class="example">
  <div class="widget-header">
    <span>Title</span>
    <span>Icon</span>
  </div>
  <div class="details">
    <p>Content</p>
  </div>
</div>