CSS and Responsive Design Issues Questions

Identify common front end styling and responsiveness problems and propose pragmatic fixes. Look for missing or poorly applied media queries, fixed pixel sizing that breaks on small screens, inconsistent spacing and typography, unused or duplicated styles, and poor layout choices. Recommend mobile first breakpoints, flexible units, grid or flexbox layout patterns, and component level styling strategies. Consider performance impacts such as unnecessary repaints, heavy animations, and selector complexity, and suggest maintainability improvements like naming conventions and design tokens. Tie responsive and styling fixes to improved usability across devices.