What are the core principles of mobile-first design?

Mobile-first design prioritizes the smallest screen size first, forcing developers to focus on essential content and touch-friendly interactions before progressively enhancing the experience for larger screens.

How does it help with mobile performance?

The skill provides specific metric goals, such as keeping Largest Contentful Paint (LCP) under 4 seconds on mobile and optimizing image delivery via srcset and WebP formats.

What is the recommended touch target size?

Following accessibility standards, this skill recommends a minimum touch target size of 44x44px to ensure interactive elements are easy to tap on mobile devices.

What breakpoints does this skill recommend?

It provides specific ranges for Mobile (320px-480px), Tablet (481px-768px), Large Tablet/Small Desktop (769px-1024px), and Desktop (1025px+).

Mobile-First Responsive Design

Name: Mobile-First Responsive Design
Author: aj-geddes

byaj-geddes

•

设计工具

Guides the creation of responsive web interfaces by prioritizing mobile layouts and scaling up for larger screens.

This skill provides a comprehensive framework for implementing mobile-first design principles, ensuring web applications deliver optimal user experiences across all devices. It offers structured guidance on responsive breakpoints, touch-friendly UI patterns, and fluid typography, while emphasizing performance optimization and progressive enhancement. By focusing on mobile constraints first, it helps developers prioritize core functionality and essential content before adding complexity for tablet and desktop views.

主要功能

01Step-by-step mobile-to-desktop scaling framework

02Mobile performance benchmarks and progressive enhancement strategies

0318 GitHub stars

04Touch-friendly UI patterns including navigation and form designs

05Adaptive CSS Grid and fluid typography implementation logic

06Standardized responsive breakpoints for various device classes

使用场景

01Developing high-performance responsive web applications from scratch

02Refactoring legacy desktop sites into modern mobile-friendly interfaces

03Optimizing touch interactions and accessibility for mobile users

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add aj-geddes/useful-ai-prompts mobile-first-design

For use in Claude.ai and ChatGPT

Download Skill