Cursor
mobile
CSS Grid Layout Breaking on Small Screens in Cursor App
Your Cursor-generated CSS Grid layout looks great on desktop but completely breaks on mobile screens. Grid items overflow horizontally, content gets cut off, columns become impossibly narrow, or the layout collapses into an unreadable single column with wrong proportions.
CSS Grid is powerful but requires careful handling of responsive behavior. Cursor often generates grid layouts optimized for the desktop view you described in your prompt, using fixed column counts or pixel-based track sizes that don't adapt to smaller viewports. The grid might use grid-template-columns: repeat(4, 1fr) which creates four equal columns even on a 320px screen.
The issue manifests as horizontal scrolling, overlapping text, images squeezed to unusable sizes, or grid items that stack but retain incorrect heights and spacing from the desktop layout.
Error Messages You Might See
Horizontal scroll on mobile
Grid items overflowing container
Content cut off on small screens
Layout shift when rotating device
Common Causes
- Fixed column count without responsive breakpoints — Using
repeat(4, 1fr)orrepeat(3, 250px)which forces the same number of columns on all screen sizes - No minmax() usage — Grid tracks use fixed sizes instead of
minmax(min, max)which would allow them to shrink and grow - Grid gap too large for mobile — A gap of 32px or 48px that's fine on desktop eats into content space on a 375px screen
- Fixed pixel widths on grid items — Grid children have hardcoded width values that exceed the grid track size on small screens
- Auto-fill vs auto-fit confusion — Cursor used
auto-fillwhenauto-fitwas needed, or vice versa, causing empty tracks or content not stretching - Missing overflow handling on grid items — Text or images inside grid items overflow their boundaries without wrapping or scaling
How to Fix It
- Use auto-fit with minmax() — Replace fixed column counts with
grid-template-columns: repeat(auto-fit, minmax(280px, 1fr))which automatically adjusts column count based on available space - Add responsive grid breakpoints — Use media queries to change the grid: 1 column on mobile (<768px), 2 on tablet, 3-4 on desktop
- Scale gap with viewport — Use
gap: clamp(1rem, 2vw, 2rem)or responsive gap values in media queries so spacing adapts to screen size - Set max-width: 100% on grid children — Prevent images, tables, and other content from overflowing grid cells with
max-width: 100%; overflow: hidden; - Test at key breakpoints — Check your grid at 320px (iPhone SE), 375px (iPhone), 768px (tablet), and 1024px+ (desktop) in DevTools
- Consider Flexbox for simple layouts — If your layout is a single row that wraps,
display: flex; flex-wrap: wrap;may be simpler and more robust than Grid
Real developers can help you.
rayush33
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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.
Caio Rodrigues
I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures.
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Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.
ISHANTDEEP SINGH
Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems.
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I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well.
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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.
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🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
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Milan is always happy to connect, work on new ideas, and explore the latest in technology.
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Get HelpFrequently Asked Questions
What is the difference between auto-fill and auto-fit?
auto-fill creates as many tracks as will fit, even if they're empty. auto-fit collapses empty tracks so remaining items stretch to fill the row. For most responsive layouts, auto-fit is what you want because it ensures items fill the available width.
Should I use CSS Grid or Flexbox for responsive layouts?
Use Grid for two-dimensional layouts (rows AND columns) like card grids, dashboards, and page layouts. Use Flexbox for one-dimensional layouts (a single row or column) like navigation bars, button groups, or card content. Many responsive designs use both together.