Outta Base Child Theme is a blank Divi Child Theme which allows your header and footer area to be unboxed when you activate the Divi boxed layout. Their base child theme also allows you to safely make changes to the Divi such as when you update Divi normally your changes would get wiped out but with Base, your changes will be safe.
Outta Base Child Theme is FREE!!!
Find out more about the Outta Base Child Theme WordPress plugin here.