📐 Flexbox CSS Generator — Visual Builder

Visual Flexbox builder: set direction, justify-content, align-items, wrap, gap and copy CSS instantly with 4-item live preview.

direction

justify-content

align-items

wrap

Gap (px)

Item count

📚 About This Tool

Flexbox is a flexible CSS layout system to distribute items in a row or column. Key properties: flex-direction, justify-content (main-axis alignment), align-items (cross-axis), flex-wrap, gap.

❓ FAQ

Flex or Grid?

Flexbox for 1D layout (single row or column). Grid for 2D layout (rows and columns together).

Difference between justify-content and align-items?

justify-content aligns on the main axis (horizontal in row). align-items aligns on the cross axis (vertical in row).

How do I make an item fill remaining space?

Use flex: 1 or flex-grow: 1 on the item.

Does Flexbox work in all browsers?

Yes — 99%+ support since 2017, safe for production.