Re: What things are called in the css
First download and install the Firebug extension for Firefox. Found here: https://addons.mozilla.org/en-US/firefox/addon/1843/
Then get to know how to use Firebug by reading through this document: http://www.docstoc.com/docs/6555469/How-to-use-Firebug
The document is pretty detailed so it’ll allow you to wrap your head around things.