Wordpress Top Menu. Others offer widgets so you can make your menu sticky with a click of a button. Select a menu from top bar navigation drop down.
To enable top bar. Psychologists call it the serial position effect its based on the principles of primacy and recency. Menus allow theme designers to let you the user create custom menus of your own.
I dont think there is anything wrong with doing it the way you are already doing it with css though.
To remove an item from a sub menu simply drag it to the left so that it is back at the main level. Manage the primary menu in wordpress. Yeah i know how to make the menu sticky on top with css i said that more as a suggestion to improve the functionality of the theme. Adding a wordpress menu to our website.