If someone from google reads this, can you please consider removing the functionality that periodically drops the nav bar at the top down? Many people use the top of their screen as a bar to line up and read text. Your site is basically unreadable.
Having to scroll UP when I'm reading by scrolling DOWN only to hide the bar is bothersome. That's the point. And what's the "literally" for, in case I scroll up "figuratively" and wonder why it doesn't work? :-)