Requesting help to Correct CSS Drop Down Menu Position

Hi

I am seeking help to reset the position for my drop down menu. When the drop down opens after hovering over the parent menu item it appears too low so I cannot click on the dropdown menu item before it disappears. Can anyone help indicate which portion of the script in the styles page I need to edit to correct this. See screenshot attached for more info.

Hover over ‘Home’ to see the drop down menu
http://thetokenyardclub.com/

Thanks