Added fixed sidebar, scrollable in beside & text only modes.
Added sticky topnav
Sidenav with fixed sidebar & sticky topnav
Topnav sticky
Known issues
In sidenav tile mode if there are a lot of items they will flow off screen as it is not possible to make modes with the flyout sub navigation scroll-y without cutting off the sub menu, one solution would be to implement javascript (like we did for top menus) to modify the position to allow it to pop out @see https://css-tricks.com/popping-hidden-overflow/. In most cases there aren't enough items to make this a problem at the moment.
Sidenav with fixed sidebar & sticky topnav
Topnav sticky
Known issues
In sidenav tile mode if there are a lot of items they will flow off screen as it is not possible to make modes with the flyout sub navigation scroll-y without cutting off the sub menu, one solution would be to implement javascript (like we did for top menus) to modify the position to allow it to pop out @see https://css-tricks.com/popping-hidden-overflow/. In most cases there aren't enough items to make this a problem at the moment.