Expand / Collapse Widget Demo

Basic Details Widget

What is an expand/collapse widget?
An expand/collapse widget lets you hide or reveal additional content on demand. The HTML <details> element provides a native implementation with the <summary> element acting as the toggle control.

Helpful Tips

How do I customize the appearance?
You can target the summary and inner content with CSS. Add icons, adjust spacing, and change transitions to fit your design.
Can I have multiple sections?
Absolutely. Each details block manages its own state, so you can include as many sections as you like within the same interface.