CSS Flexbox Generator
Build CSS flexbox layouts visually — set direction, justification, alignment, wrapping and gap, then watch the preview update live. Copy the generated container CSS straight into your project.
How to use
- Choose direction, justify and align values from the dropdowns.
- Adjust gap and item count while watching the preview.
- Copy the CSS for your own container class.
Note: Item heights vary on purpose so align-items effects (especially stretch and baseline) are easy to see.
Tips
- Start with justify-content: center and align-items: center for quick card centring.
- Use gap instead of margins between items — it handles edges more cleanly.
- Combine flex-wrap: wrap with a max-width container for responsive rows.
Frequently Asked Questions (FAQ)
What does the Flexbox Generator do?
It builds flexbox layouts visually; the preview and container CSS update live as you change direction, justification, alignment, wrapping and gap.
How do I use the generated code?
Copy the CSS for your own container class and paste it into your project.
Why do the item heights vary?
Item heights vary on purpose so align-items effects, especially stretch and baseline, are easy to see.
Can I change the number of flex items?
Yes; choose between 1 and 10 items and the preview and the generated CSS update together.