v0
ui
Tailwind Responsive Classes Not Working on Mobile
Your Tailwind responsive classes (md:, lg:, sm:) don't apply correctly on mobile devices. Layout breaks on specific screen sizes or doesn't adapt to viewport changes.
Responsive breakpoints fail when viewport meta tag is missing, Tailwind configuration is incomplete, or browser caching prevents style updates.
Error Messages You Might See
Responsive classes not applying
Layout broken on mobile viewport
Breakpoint not triggering
[Tailwind] Content path mismatch for responsive
Common Causes
- Missing or incorrect viewport meta tag in HTML head
- Tailwind content config doesn't match file locations containing responsive classes
- Browser caching old CSS before responsive classes were added
- Responsive classes written incorrectly (e.g., md:w-50 instead of md:w-1/2)
- Mobile viewport width detection failing due to viewport settings
How to Fix It
Add viewport meta tag: In next/head or layout, ensure: <meta name="viewport" content="width=device-width, initial-scale=1" />
Clear build cache: Delete .next folder and rebuild: rm -rf .next && npm run dev
Test with DevTools: Use Chrome DevTools device emulation (Ctrl+Shift+M) to verify responsive behavior.
Valid breakpoint sizes: Use Tailwind defaults: sm (640px), md (768px), lg (1024px), xl (1280px), 2xl (1536px).
Real developers can help you.
Jen Jacobsen
Iām a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle ā turning ideas into real, well-built products that are intuitive for users and scalable for businesses.
I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
Matt Butler
Software Engineer @ AWS
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
Jared Hasson
Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever
Omar Faruk
As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture.
I played a key role in creating a scalable and maintainable platform to support educators and learners globally.
I'm enthusiastic about embracing new challenges and making meaningful contributions.
Jacek Rozanski
Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004).
Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month.
What I bring to AI-built apps:
- I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0
- I refactor AI-generated prototypes into production-grade applications with proper error handling, testing, and clean architecture (SOLID, DDD, hexagonal architecture)
- I set up the infrastructure AI tools don't touch: AWS hosting, CI/CD pipelines, automated deployments, database optimization, monitoring, and alerting
- I integrate external services: payment providers, email systems, partner APIs, SSO/auth
Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code.
Based in Poland (CET timezone). Available for async work and calls during EU/US business hours.
Milan Surelia
Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems.
Expertise:
š” Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web.
šļø Sharing insights through technical writing, blogging, and open-source contributions.
š¤ Collaborating closely with designers, PMs, and developers to build seamless mobile experiences.
Notable Achievements:
šÆ Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
š Launched Compose101 ā a Jetpack Compose starter kit to speed up Android development.
š Open source contributions on Github & StackOverflow for Flutter & Dart
šļø Worked on improving app performance and user experience with smart solutions.
Milan is always happy to connect, work on new ideas, and explore the latest in technology.
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
What's the mobile-first approach in Tailwind?
Tailwind uses mobile-first: base styles apply to all sizes, then md: and lg: override for larger screens. Don't use sm: unless targeting very small devices.
How do I test responsive design?
Use Chrome DevTools (F12), toggle device toolbar (Ctrl+Shift+M), and test different screen sizes. Also test on real devices.
Can I customize Tailwind breakpoints?
Yes, in tailwind.config.ts: theme: { extend: { screens: { 'custom': '992px' } } }