Can you refer me to a tutorial for making CSS-based dropdown menus similar to what’s found on this site?
First of all, I must admit I am not a big fan of dropdown menus. They can be a usability nightmare when not done right, and all too often they mask a poorly developed site architecture.
That said, if you feel the need to incorporate them for your site (or a client insists you do it on their site), there is a right and a wrong way to it.
The cthsu.com site uses a product called “CSS Express Drop-Down Menus” from ProjectSeven. It’s another good implementation aimed specially at single-level CSS dropdown menus.
I hope that helps you. For more on dropdowns and how they affect website user interfaces, read these articles: