RTS Questionnaire · Question 17 of 52 · file: answers/q17.html
Have you worked with CSS3 and SCSS, particularly for responsive UI development?
CSS3SCSSFrontend
✅ Yes — CSS3 and SCSS/Sass are core front-end skills I apply on every Angular/React delivery.
Technical detail
- 🎨 CSS3 — Flexbox and CSS Grid layout systems, custom properties (CSS variables) for theming,
clamp()/min()/max()for fluid typography and spacing, transitions/animations, transforms, logical properties, aspect-ratio, and container queries for component-level responsiveness. - 🧵 SCSS architecture — partials and the 7-1 style folder structure, variables/maps for design tokens, mixins and functions, extend/placeholder strategy, nesting discipline kept shallow, BEM-style naming, media-query mixins with a shared breakpoint map, and theme switching for light/dark modes.
- 🧩 Component libraries and design systems — Angular Material/CDK, Material UI, Tailwind-style utility workflows, and shared component libraries where spacing, colour and typography come from tokens rather than ad-hoc values.
- 📱 Responsive craft — mobile-first breakpoints, fluid grids, responsive images and typography, touch-friendly targets, reduced-motion support, focus visibility and WCAG-oriented contrast, verified across real viewports.
⚡ Performance hygiene: keeping selectors shallow, avoiding layout thrashing, minimising critical CSS, and auditing with built-in browser tooling plus Lighthouse before release.
🧾 CV evidence: 2025 CV core skills include 'HTML / CSS' and 'Material UI' alongside Angular 17/18 responsive delivery; specialisation in responsive UIs listed under advanced front-end expertise in the assessment profile.