Chhavi Sharma contributed to the recursivezero/abcd repository by delivering a targeted Responsive UI Improvements feature during May 2025. She focused on enhancing the user interface for the number and varnmala sections, refining grid layouts, font sizes, and element dimensions to ensure optimal viewing across mobile, tablet, and desktop devices. Her approach emphasized disciplined, incremental commits and clear commit messaging, reducing the risk of regression while maintaining UI consistency. Utilizing CSS, responsive design principles, and front end development skills, Chhavi’s work improved cross-device usability and user engagement potential, demonstrating depth in component-level UI tuning and attention to maintainable code practices.