TCEforms draws huge empty icon row which on select-fields, making a scrollbar to appear
Certain fields of type "select" which offer records from a "foreign_table" will contain a huge amount of t3-icon-empty icons just below the select box. If you have enough of them, you even get a horizotanl scrollbar.
See some screenshots here:
The issue is not a CSS issue, but a bug in the rendering of such a field.
See it in action in tt_content field "sys_language". Just create enough sys_language records so that you see the row of empty icons being created. This wasn't this way before.
(issue imported from #M18041)