navigation with drop down feature?

[puzzled]

The tutorial are great for the basic. i have tried all of the different bars such as navigation,sliding,tab,texting, menu etc. The menu and slide bar has a drop down feature but you cant change the way the button looks. i like how the navigation button looks like, plus you can have the color change when you roll over it etc. the only thing is navigation does not seem to have the drop down feature. this is what i want to know. how do you make the navigation have a drop down bar like the menu bar? thanks
www.norwexhccpc.com