optional html insert at top of page, for navbar or other purposes

I've also tried working on a left side option as well but haven't been able to work out the css and div issues to maintain properly centering/layout of existing page, if arbitrary html is inserts on left side.

I'm adding this so I can have custom text at top of page on my nodes, while not needing to change the node code at all. This way I can git pull any updates you and others make with no hand tuning after.