gaps between the faq blocks

hey!

I wanted to ask you if you could be so kind and help me with the gap between each single faq block, you can see what I mean on the following screenshots 🙂
screenshot1
screenshot2
the gap is really big and I want to make it smaller (so it’s about 15px or something like that). I tried to fix it with some custom css but unfortunately there are strange input fields (which aren’t displayed but are there, see screenshot3) – each with a different ID – so I can’t just simple write some css to get them hidden, because everytime my customer makes a new faq block, there is this gap again (and he is not able to fix this issue). so I’m quite desperate how to fix this globally…
screenshot3

thanks for helping! 🙂

greetings
Diana