I'm new to branding SharePoint and I've been asked to overhaul the look of the global navigation bar in SP 2013. I've read that I can change a lot of elements such as ms-breadcrumb-top and menu-item-text
However, in the dev toolbar, I'm finding that it would be useful to change some of these elements that appear to be specially named.
#zz12_TopNavigationMenu #ctl00_PlaceHolderLeftNavBar_QuickLaunchNavigationManager #zz14_V4QuickLaunchMenu #zz15_RootAspMenu
It looks to me as if they're dynamically generated depending on what I have on the page. Which leads me to believe I should leave them alone.
Is it ok to apply CSS styles to these or will they change? What's the general rule of thumb?
I know there's more.. but these are examples.