Bootstrap 3 navbars don't support secondary dropdowns, but we can certainly make them. Here's a demo of how we did it.
Here's the Goal
Here's the goal. We want Bootstrap to support secondary or multi-level dropdowns. By that we mean:
- About
- Dropdown Menu Item
- Secondary Dropdown Menu Item
- Secondary Dropdown Menu Item
- Menu Item
- Menu Item
- Dropdown Menu Item
- Contact
If that's confusing, just click on "Dropdown" in the navigation above and then on "Second Dropdown" to see what we're doing in action.
What About WordPress?
Glad you asked! We've also created a fork of the wp_bootstrap_nav_walker
class to use in your custom WordPress theme builds so your Bootstrap v3 WordPress themes can use the built-in WordPress menu system AND support secondary dropdowns.