Add CSS-Only Accordion / Collapsible Sections

[kavana185]

Description

A fully functional accordion (collapsible sections) built with only HTML and CSS.
No JavaScript required.

Features

• Expand/collapse multiple sections
• Smooth CSS transitions
• Only one section open at a time (radio button version)
• Responsive design
• Customizable colors and styles
• Accessible (keyboard-friendly)
• Rotating arrow icon for open sections

Files

• index.html
• style.css
• README.md

Usage

1. Open index.html in any modern browser.
2. Click on section headers to expand/collapse content.

[kavana185]

@you-dont-need
Can you please review this PR , and leave an approving review/merge if everything looks good?

If any changes are needed, please let me know — I’m happy to make updates.
Thank you.

[aayush105]

Sure you can work on this. @kavana185