CSS Dropdown menu problem

I downloaded a free CSS template to use it in my ASP.NET project, but I tried many times to convert simple menu to dropdown menu's, Help please, I'm not 开发者_运维技巧familiar with CSS.

I uploaded the style here : http://www.apps-srv.com/electronix

Thanks in advance!

The link you've provided is no longer valid, but the comment from toddsler says that there's no evidence at an attempt at a dropdown, so I'm going to go off that.

I suggest checking out this article from A List Apart, as well as this one. The first does vertical dropdowns from a horizontal menu, while the second does a vertical menu with dropdowns that go out to the right, then down. They should help you get started.