could it have anything to do with the backface-visibility: hidden? there's this bug... https://bugzilla.mozilla.org/show_bug.cgi?id=1789055
Yes, most likely it is a bug in FF. I have tested several templates now and the same problem occurs in all of them and each time only in FF. I have also already written a bug report. I hope the problem will be solved soon. https://bugzilla.mozilla.org/show_bug.cgi?id=1790860
You're welcome! Thanks, currently I am working on a second design to showcase my content. Let's see what comes of it. :)