During November 2024, Ernesto Montellano focused on enhancing the user interface of the DiegoAnguloC/TallerDivF repository by conducting a comprehensive semantic review and aligning CSS for improved accessibility and content presentation. He applied his expertise in HTML and CSS to refine semantic structure, standardize font definitions, and introduce CSS variables, which contributed to greater visual consistency and maintainability. Ernesto documented internal UI notes and structured comments to guide future development, ensuring that ongoing work would build on a solid foundation. While no bugs were reported or fixed, his contributions established groundwork for accessible, maintainable front-end development using modern web standards.