You know I am becoming a poster boy for this plugin. There is a plugin for firefox called "fire bug" that makes it super easy to find any elements on a page and look at both the mark up and the css that controls it. You may find this really really helpful, I do.
W/ it, you just to the page you want to edit turn it on and use the inspect function (by clicking on the big button that says "inspect". then you just roll you mouse around you page. it will out line the elements that you are going over. The bottom of you browser window will display on the left, the mark up for that element, and on the right it will show you relevant css along w/ the line number that it it is in you style sheet.
here is the mark up from the body tag where the h_tall.called is called. you can find it at, style.css (line 2)

Code:
body {
background:transparent url(images/h_tall.gif) repeat-x scroll center top;
text-align:center;
vertical-align:top;
}