Ensuring pixel-perfect UI in React apps can be challenging due to various factors like responsive behavior and dynamic data.
Starting with a solid foundation by using design tokens and consistent values is crucial for maintaining design accuracy.
Utilizing tools like Pixel Perfect Pro for visual comparison, automation with visual regression testing, Storybook for UI development, and Chrome DevTools for debugging can help achieve pixel-perfect UI.
Common pitfalls to avoid include issues like box-sizing inconsistencies, improper unit usage, and hardcoded values that can impact design consistency.