Thanks Tim,
That’s all I need for DTR. Looks to be a great solution and definitely works well on your sites. I have been caught out with big headers pushing the content down before which is why I noticed it. I am on a 1920*1200 display and at times it is easy to forget that you are the exception rather than the norm!
I try to keep mine at around 150px tall now.
It would look fine at 1280 though and that is the likely resolution for students - so hardly a deal breaker. Nice work.