Developed the Promotional Advertisement Section UI/UX and styling for the Iryna-Novikova/goit_markup_team_project repository, focusing on delivering a new promotional interface featuring a discount offer and health-related tagline. Employed HTML and CSS to create accessible heading semantics and responsive layouts, ensuring optimal typography and visual consistency across mobile and desktop devices. Iteratively refined markup and styles through multiple commits, addressing rendering accuracy and alignment with branding requirements. Prioritized accessibility by enhancing screen reader and keyboard navigation support within the advertisement section. The work demonstrates a methodical approach to front end development, emphasizing accessibility, responsive design, and code quality improvements throughout the process.