Redesign of header/navigation
The header has been killed. Page titles will take its place.
The navigation has been redesigned entirely. For full-size web pages,
the sidebar has been killed in favor of a horizontal list. For mobile
web pages, that same list (i.e. there is only one list that is being
manipulated by CSS) is displayed as vertical blocks. A button that is
styled to look like list item blocks then toggles the visibility of the
list.
This is hopefully more accessible and more reliable than the previous
navigation, which utilized two lists that were dynamically swapped out.
The dropdown menu was also a recurring issue for visual consistency and
accessibility.