Build and learn CSS Flexbox layouts interactively. Customize item colors, element types, shadows, and border radius — copy complete CSS.
FREE
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Container
flex-direction
justify-content
align-items
flex-wrap
Items
Live Preview (click item to edit)
Generated CSS
.flex-container {
display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: stretch;
flex-wrap: nowrap;
gap: 12px;
}Flexbox Playground is a free interactive online tool for learning and building CSS Flexbox layouts with rich item customization. Control flex-direction, justify-content, align-items, flex-wrap, and gap — and for each item individually set element type (text, heading, button, image, card), background color, border radius, box shadow, and padding.
CSS Flexbox is the most widely used layout system on the web. The best way to learn it is to change one property at a time and immediately see the result. This playground makes that frictionless — click, see, understand, and copy the complete CSS.
Container flex properties apply to the live preview instantly. Each item stores its own element type, colors, and style. CSS output includes container styles and any customized item styles.
Set container properties
Choose flex-direction, justify-content, align-items, wrap, and gap.
Add items
Click + Add to add flex items, or click × to remove them.
Select an item
Click any item in the preview or the numbered badge to open its properties.
Customize the item
Set element type, background color, text color, border radius, shadow, and padding.
Copy CSS
Copy the complete container + item CSS for your project.
Navigation Bars
Build horizontal navbars with space-between links and centered logos.
Card Rows
Lay out rows of cards with equal spacing and centered content.
Form Layouts
Arrange label/input pairs in flexible rows that wrap on small screens.
Mobile Stack
Use flex-direction: column to stack elements vertically for mobile.
Centered Content
justify-content: center + align-items: center = perfect centering.
Learning Flexbox
Experiment with every property combination to build your flexbox intuition.
Rich Item Editing
Set element type, color, shadow, and radius per item for a complete layout preview.
All Container Props
flex-direction, justify-content, align-items, flex-wrap, and gap all exposed.
Real DOM Preview
The preview uses actual HTML and CSS — exactly what browsers render.
Color Swatches
Quick-pick from 12 color swatches or enter any hex value per item.
Complete CSS Output
Container + customized item styles in one copy.
No Signup Required
100% browser-based — start building immediately.
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