I'm tweaking the RokWebify template for my personal website, it's still in the sandbox/tinkering stage at the moment.  There's something happening that I don't understand with the content section.

Currently, I have three articles posted on the front page.  I would expect them to be in one column, newest article on top.  But instead, the newest article is on top, full width.  Then the next oldest article is in a smaller, half-width cell on the left.  Finally the oldest article is on the same row as the next-to-oldest, but on the right side.  What's worse is there's no padding between these cells, so it really makes the very nice looking design look awful.  For a look, see here: http://sandbox.klcollins.org.

I can't see anything that would cause this behavior, so I can't figure out what I did wrong.  Anyone have a clue?