Tool Reign
Developer

CSS Flexbox Generator — Visual Layout Builder with CSS & Tailwind Output

Toggle flex properties and see the layout update live. Copy CSS or Tailwind classes. All flex container and item properties covered.

Live PreviewAll PropertiesCSS & TailwindFree
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flex-direction

justify-content

align-items

flex-wrap

Gap: 8px

Items: 4

CSS

display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: center;
flex-wrap: nowrap;
gap: 8px;

Tailwind

flex flex-row justify-start items-center flex-nowrap gap-2

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Frequently Asked Questions

Quick answers to common questions

What is the difference between justify-content and align-items in flexbox?+

justify-content controls alignment along the main axis (horizontal for row). align-items controls the cross axis (vertical for row). Use both for center-centering: display: flex; justify-content: center; align-items: center;

How do I centre a div both horizontally and vertically with flexbox?+

Add to the parent: display: flex; justify-content: center; align-items: center; In Tailwind: class="flex justify-center items-center".

When should I use flexbox vs CSS Grid?+

Use flexbox for one-dimensional layouts (nav bars, card rows). Use CSS Grid for two-dimensional layouts (page layouts, image galleries).