hide the download button with CSS?

[tiber]

Hi folks. I have a jellyfin server hosting mixed media - audio, books, and shows. The books (really, PDF) functionality in jellyfin requires that downloads are enabled. However, I don't really want to allow downloads, especially since the educational materials I am hosting rely on the mixed media presentation.

I realize that simply hiding the downloads button doesn't prevent people from downloading things, but I would like to at least discourage users from doing it. Can someone please give me a CSS snippet I can include to hide the button? 

Thanks!