Expand/Collapse Widget Demo

An expand/collapse widget is a user interface component that allows users to show or hide content on demand. This pattern is commonly used to:

• Save screen space by hiding secondary information
• Improve user experience by reducing clutter
• Organize content in a hierarchical manner
• Allow users to focus on relevant information

Click on any header to toggle the visibility of its content!

The expand/collapse pattern offers numerous advantages for both users and developers:

• Better Content Organization: Group related information together in collapsible sections
• Improved Performance: Render only visible content, reducing initial page load
• Enhanced Readability: Users can focus on one section at a time
• Mobile-Friendly: Particularly useful for smaller screens with limited space
• Progressive Disclosure: Show basic information first, details on demand

This creates a cleaner, more intuitive interface that adapts to user needs.

This widget is implemented using pure HTML, CSS, and vanilla JavaScript. Here's how it works:

The implementation uses CSS max-height transitions for smooth animations and JavaScript to toggle classes. No external libraries required!

Expand/collapse widgets are versatile and can be used in many scenarios:

• FAQs: Frequently Asked Questions sections
• Accordion Menus: Navigation systems with nested content
• Product Details: E-commerce sites showing specifications
• Documentation: Technical docs with collapsible sections
• Forms: Multi-step forms with expandable sections
• Dashboards: Widget panels that can be minimized
• Settings Panels: Grouping configuration options

The pattern is so widely used that it's become an expected part of modern web interfaces.