Ah ok! That makes way more sense.
The CSS for the Dadabase app is specific to the components for that app. It targets components by their ID, instead of class, and IDs will change per app.
This might help you until I get a chance to properly respond.
Finding the specific element to update
In the case of Dadabase, if you look at the CSS - you’ll see there’s code that references #x-element_page_1_11 or something like that. That’s the page specific component ID