Trying box-sizing on index page. How to center?

Hello. trying a diff approach to centering two boxes that should display on hover.
I changed from a div w/a ul to div w/box-sizing.
however i still have not been able to position it so it centers on the page in front of the middle image.
Any suggestion on:

  1. how do I do that?
  2. I want the to display when the user hover over the center image.
    and here is the page…
    http://www.danielamorescalchi.com/coreCorp/index.php
    thx
    d

Could you please give us some context as to what element you’re referring to? Is it the two grey boxes that appear on hover?

Hello Chris & yes those are it.
I am trying to code so when the user hover over the middle image “staffing” the two boxes will display with info and links.
Thx
D