Expand/Collapse Widget Demo

This is a basic expand/collapse widget that shows and hides content when the header is clicked. The animation provides smooth transitions for a better user experience.

The content can include any HTML elements, text, lists, or even more complex structures.

• Smooth CSS transitions for expand/collapse
• Click to toggle functionality
• Responsive design
• Customizable styling
• Accessible keyboard navigation
• Multiple instances on the same page

This widget is particularly useful for FAQs, accordions, or any content that needs to be selectively revealed to users.

The implementation uses vanilla JavaScript with no external dependencies. The animation is achieved through CSS transitions on the max-height property, which provides a smooth expand/collapse effect.

Key features:

• No JavaScript libraries required
• Lightweight and performant
• Works across all modern browsers
• Easily customizable through CSS