Need top level menu items to expand when clicked on mobile.

Hola!

So, the mobile menu has all the top level navigation items linked to pages. I would like those top level items to not link anywhere, and instead, expand to show the dropdown menu items. I am using woocommerce and can’t figure out how to setup any mobile settings, outside of custom css. I also don’t know what that css should be. Help! 😉

Thank you,
Jaimie

site: http://orthosleeve.staging.wpengine.com/
username: Orthosleeve
password: 680780cf