I have styled the SideNavBox in Sharepoint 2013 which is easy enough, what's causing me a problem is that I want to apply a slightly different style to those menu items that have another tier of items below them. I have built a vertical menu system and for those items that have another menu tier below them I want to put a little arrow so the user knows that these menus open up. Here is what I have so far:
Here is the menu when you open one
I'd like to add an arrow so people know these menus open up and yet in SharePoint the sideNavBox has now specific class applied to those items that have another tier under them. How best can I achieve this?