The CSS justify-items property defines the default justify-self for all items of the box, giving them all a default way of justifying each box along the appropriate axis. It aligns the items inside their grid areas on the inline axis.

stretchDefault value. If the combined size of the items is less than the size of the alignment container, any auto-sized items have their size increased equally (not proportionally), while still respecting the constraints imposed by max-height/max-width (or equivalent functionality), so that the combined size exactly fills the alignment container.
centerThe items are packed flush to each other toward the center of the alignment container.
startThe item is packed flush to each other toward the start edge of the alignment container in the appropriate axis.
endThe item is packed flush to each other toward the end edge of the alignment container in the appropriate axis.
| Initial value | stretch |
| Applies to | grid containers |
| Inherited | no |
| Animatable |
normal is not supported. Initial value is stretch.self-start, self-end, left, right, flex-start, flex-end are not supported.LCD tables only load in the browser