I am trying to target the boxes with the white dots in them. Every black box in this image is a blog post including the larger one on top. Initially, I thought of using nth-child but honestly am not sure how to arrange it or what numbers to use. I’m sure jQuery is an option. If anybody out there can help me out, I’d be very grateful. Thank you.

Pretend the white dot is a blue background, for this example (JQuery):
Working example: http://jsfiddle.net/AlienWebguy/R5MJ3/