I confess, I have pretty much zero understanding of the overflow property, so possibly that would clear up all of the overlapping problems I've previously seen.

I do know that picking a really good minimum can be hard, because there are several different parts of an entry as displayed on a reading page. I wouldn't pick .journal-type-y as my class, without specifying that it's the entry text portion that I wanted to hide. I would want the entry links to remain visible, and probably to keep the title from taking up any of the restricted space.