Based on email from Anne of Murach books h3
uses menu-vert-anim_AdamB5_Flex.css which also put all css into this file.
Removed the nav.vertical class and just called it nav. Attempted to set attributes for Nav However, all of the formatting got messed up and couldn't even set no-underline for menu boxes. Need to really understand what's setting the styles for the AB NavBar.
list-style-type: none; /* i.e. no underline */