I'm actually not certain if this is a CSS thing or a PHP thing. I've added a custom post type to a WordPress development site. All is mostly appearing correctly, except that this new section content isn't appearing in 3 columns as the others are, and as far as I can see, the code is no different between them. I *believe* this is something to do with the CSS, but I'm just not certain:
The section I'm having trouble with is a ways down the page, and is called Video Portfolio.