Expand/Collapse Widgets

This page showcases a few ways to create expand/collapse interactions. Each widget is wrapped in a container with class example, and the controlled content container uses class details.

Native Details Element

What is a details/summary widget? Native

The <details> element provides built-in expand/collapse behavior paired with a <summary>. It is keyboard accessible and doesn’t need JavaScript for basic usage.

  • Click or press Enter/Space on the summary to toggle.
  • Works across modern browsers.
  • You can style it with CSS and enhance behavior if needed.

Learn more on MDN.

Custom Disclosure (Button Controlled)

Accordion (Single-Open)

Getting Started Step 1

Install dependencies and set up your development environment. Verify versions and run a quick hello world to ensure everything works.

Configuration Step 2

Configure environment variables, set API keys, and choose feature flags. Keep secrets out of version control and use a local .env file.

Deployment Step 3

Build artifacts, run tests, and ship to your staging environment. When verified, promote to production and monitor telemetry for regressions.