Agent skill · software engineering · aj-geddes
responsive-web-design
Create responsive layouts using CSS Grid, Flexbox, media queries, and mobile-first design. Use when building adaptive interfaces that work across all devices.
Why this skill is useful
Codifies best practices for responsive web design but AI already knows general CSS techniques.
What it needs
About 1k tokens when loaded. Last updated 2026-03-04. 307 stars on the source repository.
What this skill does
Responsive Web Design Table of Contents Overview When to Use Quick Start Reference Guides Best Practices Overview Build mobile-first responsive interfaces using modern CSS techniques including Flexbox, Grid, and media queries to create adaptable user experiences. When to Use Multi-device applications Mobile-first development Accessible layouts Flexible UI systems Cross-browser compatibility Quick Start Minimal working example: Reference Guides Detailed implementations in the references/ directory: Guide Contents --- --- Mobile-First Media Query Strategy Mobile-First Media Query Strategy Flexbox Responsive Navigation Flexbox Responsive Navigation CSS Grid Responsive Layout CSS Grid Responsive Layout Responsive Typography Responsive Typography Responsive Cards Component Responsive Cards Component Best Practices ✅ DO Follow established patterns and conventions Write clean, maintainable code Add appropriate documentation Test thoroughly before deploying ❌ DON'T Skip testing or validation Ignore error handling Hard-code configuration values
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills aj-geddes/responsive-web-design