Hey Bubble community! 
I struggled with getting my app to look good on mobile — but after some trial and error, here are a few quick hacks that really helped:
Tips:
1. Use Groups Inside Groups
Wrap elements in groups, and then wrap those in container groups. This keeps your layout flexible.
2. Use the New Responsive Engine
Make sure you’re using the latest responsive engine (v3). Set layout to row, column, or align to parent for more control.
3. Set Min/Max Widths
Avoid elements stretching too far or shrinking too much. Example: min 200px, max 400px.
4. Use “Fit width to content”
Great for buttons and short text — it prevents cutting off content.
5. Preview Responsively
Click the Responsive tab to test how your app looks on different screen sizes.
6. Show/Hide on Mobile
Use conditions like:
When page width < 500 → this element is visible
to customize mobile vs desktop views.
These simple tweaks really helped me fix my layout issues —
You can try them too, and I’m sure they’ll help make your app look great on all screen sizes!