I am trying to implement a logo the Communications group created for me. It includes a rollover, so I need to upload two images (one "on" and one "off"). I can upload the CSS via a CSS injector but am trying to figure out how to change/add the HTML that is part of the header/top of the page but not the header block itself and how to add the second image. Is either of these possible?
Using the drupalcloud site as an example, the header block only includes the search box. I want to edit the HTML that includes the black background. Any ideas?