Please, help with building a navigation

Thanks for your snippet.
But well, to be honest it really lacks examples. Why do I have to read a giant page with explanation of all the parameters when I want to create an absolutely similar by design "Documentation" page like on modxcms.com? I’ve read it, but I still haven’t managed to get things to work because I still don’t understand much in it.

All I need is to make this :hover action of each menu item and make links bigger (so not just text, but a rectangle like on Modxcms.com). Here’s exactly how I want it to look like:
http://modxcms.com/documentation.html

I managed to get a simple <ul><li> list working, but it doesn’t look as good.

I checked your site with examples, but all the examples are about creating CSS dropdown menus. I’m feeling desperate. Could you please tell me what parameters should I add and edit?

Thanks and sorry for probably a newbish request.

take a look at http://www.muddydogpaws.com/development/wayfinder/examples.html

lots of examples

If you want it to look good, you have to edit your stylesheet, not the Wayfinder call. You might want to look at the css for that page and see how they styled the <li> and <a> tags.