What is CSS Flexbox Generator?
CSS Flexbox (Flexible Box Layout) is a one-dimensional layout model that distributes space among items in a container and aligns them. The container becomes a flex context with `display: flex`, and children become flex items. Flexbox handles alignment, direction, ordering, and sizing — solving layout problems that were difficult with floats and positioning. It's ideal for navigation bars, card rows, centering content, and any layout where items need to share space along one axis.
Tips & Best Practices
- 1Use `gap` instead of margins between flex items — it's cleaner and doesn't need `:first-child`/`:last-child` overrides.
- 2Use `flex: 1` to make items share available space equally, or `flex: 0 0 auto` to prevent an item from growing/shrinking.
- 3Combine `justify-content: center` and `align-items: center` on a flex container to perfectly center any content.
- 4Use `flex-wrap: wrap` with `flex-basis` values for responsive grid-like layouts without media queries.
- 5Use `order` to visually reorder items without changing the DOM — useful for responsive layouts.
- 6Use `margin-left: auto` (or `margin-inline-start: auto`) on a flex item to push it to the far end — great for navigation layouts.
Frequently Asked Questions
Flexbox is one-dimensional — it handles layout in a single direction (row or column) at a time. CSS Grid is two-dimensional — it handles rows and columns simultaneously. Use flexbox for component-level layout (navbars, card rows) and grid for page-level layout (overall page structure).
flex: 1 is shorthand for flex-grow: 1, flex-shrink: 1, flex-basis: 0%. It means the item will grow to fill available space equally with other flex: 1 items. If three items all have flex: 1, they each take one-third of the container.
Set the container to `display: flex; justify-content: center; align-items: center; min-height: 100vh` (or your desired height). This is the most reliable centering technique in CSS.
justify-content distributes items along the main axis (horizontal in a row, vertical in a column). align-items aligns items along the cross axis (vertical in a row, horizontal in a column). Think: justify = main direction, align = perpendicular direction.
Yes, use `flex-wrap: wrap` on the container. Items that exceed the container width will wrap to the next line. Combine with `flex-basis` (or `min-width`) to control how many items fit per row.