Coding⏱️ 2 min read📅 2026-05-31

How to Fix: Bootstrap dropdown sub menu missing

Bootstrap 3 dropdown sub menu missing due to removal of deprecated classes. Use the new .dropdown-menu class and add .dropdown-submenu for submenus.

Quick Answer: Use the .dropdown-menu class and add .dropdown-submenu to create submenus in Bootstrap 3.

Bootstrap 3 is still at RC, but I was just trying to implement it. I couldn't figure out how to put a sub menu class. Even there is no class in css and even the new docs don't say anything about it

It was there in 2.x with class name as dropdown-submenu

Root Causes of the Error

  • 1. The Bootstrap 3 version is still in RC (Release Candidate) and may not have all the features available for production use.

How to Resolve This Issue

Method 1: Use the dropdown-submenu class

  1. Step 1: Add the 'dropdown-submenu' class to your dropdown menu item.

Method 2: Use a different approach

  1. Step 1: Create a new dropdown menu item with the 'dropdown-submenu' class.

Conclusion

You can resolve this issue by adding the 'dropdown-submenu' class to your dropdown menu item.

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