How Do I Make Submenu Horizontal in WordPress?

In WordPress, when creating a submenu, the menu will be horizontal by default. There is a way to make the menu horizontal, but it is not easy. The following are the steps to follow:

First, go to Appearance > Menus and create a new menu.

Next, select the new menu and go to the options tab. In the options tab, select the Horizontal setting.

Finally, save the menu and test it out.