Custom mega menu - Click mobile show/hide

When you click button menu in mobile (Using the same menu as desktop, with mega menu), the menu is displayed. But if u want to close it, you need to click outside de content menu. How can i close it clicking in button menu as well?

I notice that when you click in the menu in mobile, it add sfHover, and to remove this class i should click outside the content menu. I want to click in the button menu to close it as well. Both possibilities, click outside & click in the button menu to close it.

THX