Trouble with Arcane theme

I recently downloaded the plug-in, and wanted to use it to create a page of my blog posts. The trouble I’m having is that when I create the block, it looks great initially, but when I go to preview it (or put it live), I end up with what looks like columns in the post block. See the link above for an example. The top post at that link shows what I mean.

Can anyone help figure out why it’s doing this? Thanks!

Sean

The page I need help with: [log in to see the link]