This is the first expandable section. It contains an overview of the topic. The height transition is handled via JavaScript to ensure smooth animation regardless of content length.

Here are some technical details:

• HTML5 Structure
• CSS3 Transitions
• Vanilla JavaScript Event Listeners

The content is hidden by default using max-height: 0.

This is the final section. You can toggle multiple sections open at once, or close them all. The design uses a simple clean aesthetic suitable for FAQs or navigation menus.