Expand/Collapse Widgets Demo

This is a custom expand/collapse widget built with HTML, CSS, and JavaScript. It allows you to toggle the visibility of content, helping to manage space and focus on key information.

It's commonly used for FAQs, accordions, or hiding supplementary details until they are needed by the user.

The core functionality relies on toggling a CSS class (`expanded`) on both the button and the content container.

• HTML: Defines the button and the content area.
• CSS: Styles the elements and uses `max-height: 0` with `overflow: hidden` for collapsing, along with `transition` for smooth animation.
• JavaScript: Listens for button clicks. When clicked, it dynamically sets the content container's `max-height` to its `scrollHeight` to expand, or to `0` to collapse. It also updates `aria` attributes for accessibility.

Using expand/collapse widgets offers several advantages:

• Space Saving: Reduces clutter on a page by hiding less important content.
• Improved UX: Users can quickly scan headings and expand only the sections they are interested in.
• Better Organization: Helps organize large amounts of information into digestible chunks.
• Accessibility: With proper ARIA attributes, it improves usability for screen reader users.

Feel free to inspect the code to see how it's implemented!