Catch Box Theme: Remove Header Padding/Margins

Hi, How do you remove the white border/padding or margin around the header image (static page) on the Catch Box theme. I want to buy the Pro version but need to know if this can be sorted before I do. The website in questions is http://turnerstravel.co.za/ Question 2: When I buy the Pro version, will I be able to edit or remove "Theme: Catch Box by Catch Theme" on the footer?