I agree with MSherwood here. I'm not sure exactly what you mean by "I'm using Webs". Is Webs an application or a type of web builder/pagebuilder?
The best advice I can give you is to do a Google search for "free css templates for drop down menus". I found this site by doing a simple search:
There are plenty of tutorials you can find by doing a search for them. Also, if you know of a website that you like and want to know how it was made, you can view the source. Just right click on part of the background of the webpage and scroll down to where it says "view source" or something similar to those words.
I also have this page where you may be able to find some more guides and tools:
The Club House