space between parent menu and submenu

I just started working on this site I did not build it but now I am working on it and the submenus have space between the parent menu which makes them not work. I tried messing with the style.css file but I havnt been able to find what is causing it yet. The site is https://burlesonareachamber.com/ so if you see anything there that might be causing this please let me know. Any help would be much appreciated THANKS.