mirash

You were right, when I cleared the cache, it worked for the front page.
it is actually for a post and here it does not work.

https://www.dr-scheib.de/psychosomatische-grundversorgung-kompaktkurs/

I have used this:

.page-id-820 .navi {
display: none;
}

and also tried:

.post-id-820 .navi {
display: none;
}

Thank you very much!

Hi, thanks for the answer.
Unfortunately this is not working.
The menu does not disappear.