On a small scale, this code does as I expect, puts a transparent layer of white over a background image. I don’t want to do this in Photoshop because I only want it on the middle 80% of the site header and when the site scales to a smaller screen, the site title and site description move out of the transparent area. I guess what would answer my question is – what is the class or id of the container or wrap for the site-header?