All mobile rendered pages should have a fixed top-bar menu. Those that don't have yet to be converted.
It has taken some time for this template to evolve but it is now taking shape nicely.
Additional menus on larger screens
I have made a compromise here. As it is accepted that the majority of views, particulary from local sources, are likley to be on mobile phones, I have changed my design approach for the different displays.
In the case of local pages I am assuming that the attention span of the viewer is much shorter than those actually looking for detailed information.
Mobile Pages
I have changed some of the w3-hides so that the menu can be opened when a mobile phone is viewed in portrait.
I will have to document my changes and change the third_subpage template and any other pages where I might want this to work. At the moment I have it working on this page and design_3.html (This is now pretty much universal)
Changes needed for third_subpage template
Firstly the hiding of the header also hides the #top id, this means the "Top" button no longer works on a medium screen so I have hidden it in the subnav code.