Layouts & Styling Interview Questions

Layout components are created using layout.js files. Share UI between pages. Support nested layouts. Handle persistent navigation and UI elements. Available in App Router.

Use .module.css files for component-scoped CSS. Import styles as objects. Support local class naming. Automatic unique class generation. Built-in support in Next.js.

Import global CSS in app/layout.js or pages/_app.js. Apply styles across all components. Support reset styles and base themes. Handle global styling patterns.

Use media queries, CSS Grid, Flexbox. Support mobile-first design. Handle breakpoints. Implement responsive patterns. Support different screen sizes.

Create multiple layout.js files in route segments. Support layout hierarchy. Share UI between related routes. Handle layout composition.

Install and configure Tailwind CSS. Use utility classes. Support JIT mode. Handle Tailwind configuration. Implement responsive design.

Use (group) folders to organize routes. Don't affect URL structure. Share layouts within groups. Support multiple groups.

Use CSS-in-JS solutions or dynamic class names. Support runtime styles. Handle style variables. Implement dynamic theming.

Support styled-components, Emotion, and other CSS-in-JS libraries. Handle server-side rendering. Support dynamic styles. Implement styling patterns.

Implement page and layout transitions. Support animation effects. Handle transition states. Implement smooth navigation experiences.

Create theme providers and consumers. Handle theme switching. Support dark mode. Implement theme configuration. Manage theme variables.

Implement CSS minification, purging, and bundling. Handle critical CSS. Support CSS splitting. Implement optimization strategies.

Create responsive grid layouts. Handle grid areas. Support grid templates. Implement grid components. Manage grid responsiveness.

Optimize runtime performance. Handle style extraction. Support server-side generation. Implement performance strategies.

Use Next.js Image component. Handle srcset and sizes. Support art direction. Implement image optimization. Manage responsive breakpoints.

Implement CSS custom properties. Handle variable scoping. Support dynamic values. Implement theme systems. Manage variable inheritance.

Create reusable layout components. Handle layout composition. Support layout variations. Implement common patterns.

Implement CSS transitions and keyframes. Handle animation states. Support animation libraries. Implement animation patterns.

Create visual regression tests. Handle style snapshots. Support style assertions. Implement testing strategies.

Create complex layout systems. Handle dynamic layouts. Support layout algorithms. Implement advanced patterns.

Implement CSS methodology (BEM, SMACSS). Handle style organization. Support scalable systems. Implement architecture patterns.

Create comprehensive design systems. Handle component libraries. Support theme configuration. Implement system documentation.

Track CSS performance metrics. Handle style analysis. Support optimization tools. Implement monitoring strategies.

Create custom layout algorithms. Handle complex arrangements. Support dynamic positioning. Implement algorithm optimization.

Implement complex animation sequences. Handle animation orchestration. Support performance optimization. Implement animation systems.

Handle large-scale CSS module systems. Support composition patterns. Implement naming conventions. Handle module organization.

Implement CSS sanitization. Handle style injection prevention. Support content security policies. Implement security measures.

Create comprehensive style guides. Generate documentation. Support example usage. Implement documentation updates.

Implement layout performance improvements. Handle reflow optimization. Support layout calculation. Implement optimization strategies.