I would like to create a "special offers" page...

I would like to have 5 boxes on the left, 5 on the right and 2 on the bottom (making 12 boxes) like a U shape, with one long rectangle in the middle. The 12 boxes around the outside will display the month, an image and a little bit of text, and the big on in the middle will be the current month, allowing me to enter a bigger image, date and more text.

I am using wordpress and I would like it to be full width an auto hide, but the boxes being square (big enough to fill up the page)

I would also like it responsive, although initially that isnt required.

Can anyone help?