When working on the Blacklight gallery app, I noticed that the document collection display was pressed up against the sort-pagination controls when testing on Blacklight 9. On further inpsection, I found these changes.

As you can see, the styling is moved from the _controls.scss to boostrap classes on the target elements. In this process, we replace the padding-bottom with pb-3 but no corresponding BS class is added for margin-bottom - this resulted in some unexpected behavior in my BL9 testing.

If this is intentional, let me know.