Custom HTML menu is a DO-IT-YOURSELF type of menu. The only thing that can restrict you from customizing a Custom HTML menu is your imagination. A custom HTML menu is created by manually putting HTML elements through the WYSWYG editor on Menu Item Editor screen.
For example, a custom HTML menu can look like
- Create a menu of Regular Type. To create a menu, read How to create a menu
- Add child menu items of type Custom HTML to this menu. To create a menu item read How to create Menu Items for a menu?.