CSS Flexbox Playground
Visual flexbox builder: direction, justify, align, wrap, gap. Live preview + CSS.
Live Preview
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CSS Output
.container {
display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: stretch;
flex-wrap: nowrap;
gap: 1rem;
}About CSS Flexbox Playground
Choose a flex direction, then adjust justify-content, align-items, wrapping, and gap using simple controls. The preview holds sample items that rearrange instantly so you can see how each property affects spacing and alignment along the main and cross axes.
When the arrangement matches what you need, copy the generated CSS into your container rule. This is useful for working out navigation bars, button rows, and centered hero sections without repeatedly editing a stylesheet and refreshing the page to check the result.
Frequently asked questions
- What is the difference between justify-content and align-items?
- Justify-content positions items along the main axis, while align-items positions them along the perpendicular cross axis.
- When should I use Flexbox instead of Grid?
- Flexbox suits one-dimensional layouts in a single row or column; Grid is better when you need to control both rows and columns together.
- Why do my items not wrap onto a new line?
- Wrapping is off by default. Set flex-wrap to wrap so items move to the next line when they run out of space.