Submenu text disappears when hovering to drop-down

My main menu has a tab which contains a dropdown menu. The last item in the dropdown is itself a dropdown. In full screen mode, when I move my cursor to the 2nd level dropdown list, the text on the last menu item disappears.

My website is www.roboticsandbeyond.org. Hover on About Us->Educational Resources->Educational Services.

 

Hello,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

 
 
#menu .ddsmoothmenu li li a.selected {
color: #7b7b7b;
}

Thanks & Regards
Gourav Shrivastava

 

Works perfectly. Thank you!