Using BL 6 and Kookaburra Page template
The Running Head always seems to fill the complete width of the browser window, whereas the Header and Footer follow the Max-width as set in Layout.
I am using the Running Head as I want the menu items therein. The Main is also constraint in width.
However, this leads to a bit strange behavior/view, that the header is always window wide whereas the footer is not.
I think the behavior of (running) header and footer should be alike. As it is with Pangolin (at least can be set like that).