Drop-down menu style not being applied in zpGids Vantage child theme
I have attached two screenshots. One shows the zpGids demo site, which displays the drop-down menu in the header of the page as a solid background with a dashed line between the separate menu options.
The other screenshot shows the site on which I have recently installed the child theme, which displays the drop-down menu in the header of the page the same way as the main menu options -- the submenu items show as light grey tabs, with a dark grey box around them.
How do I fix this so the drop-down menu items on my site look the same as the zpGids demo site?
Also, when I try to select one of the submenu items, I can't. The drop-down menu just disappears, as soon as my mouse moves off the main menu item.
The site is located here: http://www.nwfdc.org
Please let me know if you need any additional info. Thanks!