Mobile Responsive Design Broken on Replit
App displays incorrectly on mobile devices with layout breaking, text too small, or elements overlapping. Responsive design isn't working.
Missing viewport meta tag or CSS media queries cause mobile rendering issues.
Common Causes
- Missing viewport meta tag in HTML head
- Fixed width CSS instead of flexible
- No CSS media queries for mobile breakpoints
- CSS not loaded on mobile due to caching
- Images not responsive (missing max-width: 100%)
How to Fix It
Add to all HTML templates. Use CSS media queries or Tailwind/Bootstrap for responsive design. Set img { max-width: 100%; } for images. Test with Chrome DevTools mobile emulation. Use flexible units (%, em, rem) instead of fixed pixels.
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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.
Matt Butler
Software Engineer @ AWS
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 viewport meta tag?
<meta name="viewport" content="width=device-width, initial-scale=1"> - tells mobile browser to use device width
Should I use Bootstrap or Tailwind?
Both work. Tailwind is lighter, Bootstrap has more components. Choose based on project needs