Base44
mobile
Modals and Popups Cut Off on Small Mobile Screens
Modals, popups, and dialog boxes in your Base44 app are unusable on mobile devices. The modal content extends beyond the screen with no way to scroll, action buttons at the bottom are hidden below the viewport, and users can't complete the action the modal was designed for.
Modals are used for critical interactions in Base44 apps: editing records, confirming deletions, viewing details, and filling out forms. When they're broken on mobile, users are stuck and can't complete core workflows.
The issue is especially bad on smaller phones (iPhone SE, older Android devices) and when the device keyboard opens inside a modal form, shrinking the visible area to almost nothing.
Error Messages You Might See
Submit button not visible on mobile modal
Cannot scroll modal content on phone
Modal form fields hidden behind keyboard
Modal extends beyond screen boundaries
Common Causes
- Fixed height exceeding viewport — Modals have a fixed height (e.g., 600px) that exceeds small phone screens (667px or less)
- No internal scrolling — Modal content doesn't scroll, so content below the fold is permanently hidden
- Centered positioning ignores viewport — CSS centering with transform places the modal partially off-screen on short viewports
- Keyboard pushes modal up — When the keyboard opens for form inputs, the modal shifts up and the top is cut off
- Padding consuming too much space — Large padding inside the modal wastes valuable screen real estate on mobile
How to Fix It
- Use max-height: 90vh with overflow-y: auto — Limit modal height to 90% of viewport and make the content scrollable
- Make modals full-screen on mobile — Below 768px, switch modals to full-screen sheets that cover the entire viewport with proper scrolling
- Stick action buttons to the bottom — Use position: sticky; bottom: 0 on the button row so it's always visible regardless of scroll position
- Reduce padding on mobile — Use smaller internal padding (12px instead of 24px) on screens below 640px
- Handle keyboard appearance — Use the Visual Viewport API to adjust modal position when the keyboard opens
Real developers can help you.
Krishna Sai Kuncha
Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : )
Rudra Bhikadiya
I build and fix web apps across Next.js, Node.js, and DBs.
Comfortable jumping into messy code, broken APIs, and mysterious bugs.
If your project works in theory but not in reality, I help close that gap.
Victor Denisov
Developer
Jen Jacobsen
I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — 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.
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
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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.
Simon A.
I'm a backend developer building APIs, emulators, and interactive game systems. Professionally, I've developed Java/Spring reporting solutions, managed relational and NoSQL databases, and implemented CI/CD workflows.
rayush33
JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems
MFox
Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking.
Bastien Labelle
Full stack dev w/ 20+ years of experience
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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Get HelpFrequently Asked Questions
Why can't I see the buttons at the bottom of my Base44 modal on mobile?
The modal height exceeds the phone's screen height and the content isn't scrollable. Add max-height: 90vh and overflow-y: auto to the modal, or make buttons sticky at the bottom of the modal.
Should I use modals at all on mobile?
For simple confirmations, modals are fine. For forms with multiple fields, consider navigating to a full-page form on mobile instead of using a modal. This gives users more space and avoids keyboard issues.