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Course/Module 4/Topic 1 of 4Beginner

Responsive Design Principles

Learn responsive design principles, breakpoints, and how to create designs that work across all device sizes.

55 minBy Priygop TeamLast updated: Feb 2026

What is Responsive Design?

Responsive design ensures that websites look and function well on all devices, from desktop computers to mobile phones. It adapts the layout and content based on screen size and capabilities.

Breakpoint strategy

  • Mobile: 320px - 768px (portrait phones and tablets)
  • Tablet: 768px - 1024px (landscape tablets)
  • Desktop: 1024px+ (desktop and larger screens)
  • Large Desktop: 1440px+ (high-resolution displays)

Mobile-First Approach

  • Start with mobile design first
  • Progressive enhancement for larger screens
  • Optimize for touch interactions
  • Consider mobile performance constraints

📚 Additional Resources

Recommended Reading

  • Responsive Web Design by Ethan Marcotte
  • WCAG 2.1 Guidelines
  • Mobile-First Design Principles
  • Accessibility Testing Guide

Online Resources

  • Chrome DevTools for responsive testing
  • axe DevTools for accessibility
  • WAVE Web Accessibility Evaluator
  • Color Contrast Analyzer
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