CSS Flexbox Generator

Generates CSS Flexbox layout code with a live preview.

Lilu Baba's CSS Flexbox Generator builds ready-to-paste flex container code and shows a live 3-box preview so you can see the layout before using it.

Flex Direction

Justify Content

Align Items

Gap (px)

How to use this tool

Choose direction, justify-content, align-items and gap.
The CSS code and a live 3-box preview update instantly.

CSS Code

FAQ

CSS Flexbox Generator — frequently asked questions

Not necessarily — the generated code covers the container; children can use default flex behavior or their own flex-grow/shrink/basis as needed.

Justify-content controls spacing along the main axis (direction of flow); align-items controls alignment along the cross axis (perpendicular to flow).