Expand/Collapse Widget Examples

These examples demonstrate different approaches to the native <details> expand/collapse widget, styled for clarity and accessibility. Each widget is wrapped in an example container, and the interactive block bears the details class.

1. Basic FAQ

What is an expand/collapse widget?

An expand/collapse widget allows users to reveal or hide supplementary content on demand, reducing visual clutter while keeping key information accessible.

Why use the native <details> element?

The native element provides accessible keyboard interactions and built-in semantics without additional scripting, making it a robust starting point for disclosure interfaces.

2. Feature Highlights

Performance features
  • Lazy loads heavy assets only when needed.
  • Minimizes layout shift with smooth transitions.
  • Optimizes rendering for mobile and desktop platforms.
Security features
  • Implements zero-trust network segmentation.
  • Supports hardware-backed cryptographic keys.
  • Provides real-time threat detection dashboards.

3. Controlled expand/collapse

Manual control

This widget exposes buttons that programmatically toggle the open state of the disclosure, showcasing how to integrate custom controls while preserving native behavior.