I have been struggling to figure out what is causing the lines in between the Gallery (add-on) columns. I have searched my own stylesheet AND the add-on stylesheet and no border commands are being called and yet, a thin gray dividing line is still present. Even if I try to add my own, it only affects the outsides of the gallery and not the "dividers." I am missing something and can't figure it out. Can anyone help?

I am using the C5 created gallery -http://www.concrete5.org/marketplace/addons/gallery/...