https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Grid_layout/Auto-placement
Auto-placement in grid layout - CSS | MDN
CSS grid layout contains rules that control what happens when you create a grid and do not explicitly place some or all of the child items within the grid....
in grid layoutautoplacementcssmdn
https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_alignment/In_grid_layout
Box alignment in grid layout - CSS | MDN
The CSS box alignment module details how alignment works in various layout methods. On this page, we explore how box alignment works in the context of CSS grid...
in grid layoutbox alignmentcssmdn