Flexbox Playground
Experiment with flex-direction, justify-content, align-items, wrap, and gap on a live layout, then copy the flexbox CSS.
Learn flexbox by moving things
Flexbox is the layout tool most developers use every day and still second-guess. The properties interact in ways
that are far easier to understand by watching than by reading: change flex-direction and suddenly
justify-content and align-items swap the axis they control. This playground makes that
tangible — pick values from the menus and a live row of items rearranges instantly.
Use it to nail a navbar, a button group, a centered hero, or a wrapping card row, then copy the container CSS straight into your project. It's equally handy as a teaching aid: toggle one property at a time to build a real feel for how the main axis and cross axis behave.
Copy-ready CSS
Generated live in your browser — nothing is uploaded.
Frequently Asked Questions
What does the flexbox playground do?
It lets you set the main flex container properties — direction, justify-content, align-items, wrap, and gap — and shows a live row of items responding to each, with copy-ready CSS.
What is the difference between justify-content and align-items?
justify-content aligns items along the main axis (the flex-direction), while align-items aligns them along the cross axis. Switching direction swaps which one controls horizontal vs vertical.
When should I use flexbox vs grid?
Flexbox excels at one-dimensional layouts — a row or column of items, like a navbar or toolbar. Grid is better for two-dimensional layouts with rows and columns together.
Is this tool free and private?
Yes. Everything runs in your browser — no sign-up and nothing uploaded.
Want responsive layouts built properly? Let’s talk.