We are upgrading Apex from 5.2 to 20.2. Our applications are using theme 26. (Of course we need to update the applications to theme 42, but for now this step is too big.)
After the upgrade, the prompt of the region buttons is shifted to left (behind the buttons). See
https://apex.oracle.com/pls/apex/f?p=18605:1 Can we easily solve this with an css-adjustment?
I stress I'm not a CSS expert :-) but looking at your example, there is
table.formlayout td label {
padding: 3px 8px 3px 0;
Perhaps look at adding something in the page
table.formlayout td label {
padding: 3px 8px 3px 20px;
and test rigorously!!!