Just as an aside...
Your page is generating errors - looks like they related to stylesheet_new.css
Expected colour but found 'ffffff'. Error in parsing value for property 'background-color'. Declaration dropped.
[Break on this error] undefined
stylesheet.css (line 252)
Error in parsing value for property 'font'. Declaration dropped.
[Break on this error] undefined
stylesheet_new.cs... (line 559)
Unknown property 'text-alignment'. Declaration dropped.
[Break on this error] undefined
stylesheet_new.cs... (line 667)
Expected colour but found '#fffff'. Error in parsing value for property 'color'. Declaration dropped.
[Break on this error] undefined
stylesheet_new.cs... (line 1057)
Your stylesheets are read by the browser in the following order:-
includes/templates/wp/css/style_imagehover.css
includes/templates/wp/css/stylesheet.css
includes/templates/wp/css/stylesheet_css_buttons.css
includes/templates/wp/css/stylesheet_new.css
includes/templates/wp/css/print_stylesheet.css
Which means that stylesheet_new.css will over-ride anything set in stylesheet.css.
You may like to familiarise yourself with the way ZC interprets stylesheets, start by reading the README file in the stylesheets folder of your template.