Cross Axis
The cross axis in flexbox runs perpendicular to the main axis, therefore if your flex-direction
is either row
or row-reverse
then the cross axis runs down the columns.
If your main axis is column
or column-reverse
then the cross axis runs along the rows.
Alignment of items on the cross axis is achieved with the align-items
property on the flex container or align-self
property on individual items. In the case of a multi-line flex container, with additional space on the cross axis, you can use align-content
to control the spacing of the rows.
See also
Property reference
Further reading
- CSS Flexbox Guide: Basic Concepts of Flexbox
- CSS Flexbox Guide: Aligning items in a flex container
- CSS Flexbox Guide: Mastering wrapping of flex items
- Glossary