CSS Live Preview Tags wrong styling

Hi, thanks for the quick reply.

I don’t see the misunderstanding here.
The documentation is giving me the field I can change in the class I want to change.

Also, my pictures are proof that the snippet is doing exactly what I expect it to do.
The first shows the life preview with mixed results, the second shows what I expect to be the new default but just in reading view.

Can you elaborate on why it should not do anything?

Also, I forgot to mention, that I searched for similar Issues before filing the report and found this:

Here I just didn’t really get the solution.
For me, it feels like there is some documentation missing.