Flexbox Generator
Visual CSS flexbox playground. Interactively design flex layouts and generate code instantly.
Live Interactive Preview
Items: 5
1
2
3
4
5
CSS Output
.container {
display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: stretch;
flex-wrap: nowrap;
gap: 16px;
} 16px
Features
- Interactive Flexbox playground
- Visual controls for direction, wrap, and alignment
- Real-time preview of flex items
- Code generation for container and items
- Support for gap and flex-grow/shrink
- Cheat sheet references built-in
Common Use Cases
- Design responsive navigation bars
- Center elements vertically and horizontally
- Create card layouts with equal height
- Build flexible sticky footers
- Align form elements
CSS Flexbox
The Flexible Box Layout Module (Flexbox) is a one-dimensional layout method for laying out items in rows or columns. It excels at distributing space between items in an interface and powerful alignment capabilities.
Key Properties:
- justify-content: Aligns items along the main axis (horizontal if row).
- align-items: Aligns items along the cross axis (vertical if row).
- flex-direction: Decides if items stack in a row or column.
- flex-wrap: Allows items to wrap onto multiple lines.
Examples
Valid - Perfect Center
display: flex;
justify-content: center;
align-items: center; Valid - Navigation Bar
display: flex;
justify-content: space-between;
align-items: center; Valid - Column Stack
display: flex;
flex-direction: column;
gap: 1rem;Frequently Asked Questions
Flexbox vs Grid: Which one to use?
Use Flexbox for 1D layouts (a row OR a column). Use CSS Grid for 2D layouts (rows AND columns). They work great together!
What does "flex: 1" mean?
It is a shorthand for `flex-grow: 1; flex-shrink: 1; flex-basis: 0%`. It forces the item to expand and fill available space equally.
How do I push one item to the right?
Set `margin-left: auto` on that specific item. In a flex container, auto margins absorb all available extra space.
💡 Tips
- Use `gap` instead of margins for spacing between flex items (supported in all modern browsers).
- Remember that `align-items` controls the cross-axis, while `justify-content` controls the main axis.
- Use `flex-wrap: wrap` to make flex layouts responsive on smaller screens.