Changing the size/padding of the custom-header

Hello I using the Clean Enterprise Theme. The "Title" of each page is by default surrounded by a "black band/box". It think that it is called custom-header (but I am not sure). The padding around the txt is very large. 1) I would like to reduce the padding around the "title" text 2) I would like to know how the change the color of the "box" around the text http://portland.daxpy.com/wordpress/products-and-services/