CSS Flexbox Generator with Preview
Generate flexbox CSS for nav bars, button groups, toolbars, cards, media rows, and alignment experiments. Tune direction, spacing, wrapping, and alignment in the browser.
One-dimensional layouts
Use flexbox for rows, columns, nav items, action bars, and centered groups.
Alignment checks
Adjust justify-content and align-items before writing final CSS.
Example
A toolbar can use display flex, justify-content space-between, align-items center, and a 16px gap.
Assumption
The generated CSS targets a container that directly wraps the items you want to align.
Limitation
The tool does not generate flex item grow, shrink, basis, order, or framework utility classes.
Can I use this for centered content?
Yes. Set justify-content and align-items to center for common centering layouts.
Does it generate responsive breakpoints?
No. It generates base CSS; add media queries in your project if needed.
Is this better than grid?
It depends on the layout. Flexbox is often simpler for one row or one column.
Does it run locally?
Yes. It does not need a server.
Suggested workflow
Flex layout path
Generate flex alignment, tune sizing units, then check colors.