CSS Flexbox Generator
Visual Flexbox layout builder with live preview. Configure properties and copy the CSS.
Container Properties
Click an item to edit its individual flex properties.
.container {
display: flex;
gap: 10px;
}Visual Builder
See your Flexbox layout update in real-time as you adjust properties. No guesswork needed.
Item-Level Control
Click any item to set flex-grow, flex-shrink, align-self, and order independently.
Clean CSS Output
Get production-ready CSS code that only includes properties you changed from defaults.
How to Use the Flexbox Generator
- 1. Use the Container Properties panel to set flex-direction, justify-content, align-items, flex-wrap, and gap.
- 2. Adjust the number of items with the Items slider to match your layout.
- 3. Click any item in the preview to edit its individual properties (flex-grow, flex-shrink, align-self, order).
- 4. Watch the Live Preview update instantly as you make changes.
- 5. Click Copy CSS to copy the generated code to your clipboard.
Frequently Asked Questions
What is CSS Flexbox?
CSS Flexbox (Flexible Box Layout) is a one-dimensional layout model that distributes space among items in a container. It provides powerful alignment capabilities for both horizontal and vertical layouts, making it ideal for navigation bars, card layouts, and centering content.
What is the difference between justify-content and align-items?
justify-content controls alignment along the main axis (horizontal in row direction, vertical in column direction). align-items controls alignment along the cross axis (perpendicular to the main axis). Together they give you full control over item positioning.
When should I use Flexbox vs CSS Grid?
Use Flexbox for one-dimensional layouts (a single row or column of items). Use CSS Grid for two-dimensional layouts (rows and columns simultaneously). Flexbox is great for navigation bars, toolbars, and card rows. Grid is better for page layouts and complex grid structures.
What does flex-wrap do?
flex-wrap controls whether flex items are forced onto a single line or can wrap onto multiple lines. "nowrap" (default) keeps all items on one line. "wrap" allows items to flow to the next line. "wrap-reverse" wraps in reverse order.