What Is CSS Flexbox?
CSS Flexbox (Flexible Box Layout) is a one-dimensional layout model that distributes space among items in a container. It simplifies alignment, ordering, and sizing of elements along a main axis and cross axis, making responsive layouts easier to build without floats or positioning hacks.
Key Flexbox Properties
- flex-direction: Sets the main axis (row, column, or their reverses).
- flex-wrap: Controls whether items wrap to new lines.
- justify-content: Aligns items along the main axis.
- align-items: Aligns items along the cross axis.
- gap: Sets spacing between flex items without margins.
Frequently Asked Questions
When should I use Flexbox vs Grid?
Use Flexbox for one-dimensional layouts (a single row or column of items). Use CSS Grid for two-dimensional layouts where you need control over both rows and columns simultaneously.
Is Flexbox supported in all browsers?
Yes. CSS Flexbox is supported in all modern browsers including Chrome, Firefox, Safari, and Edge. No vendor prefixes are needed for current implementations.