Hello,
There is not one exact spot for this. Again, we do not provide custom modifications to the template, you will need to use firebug to identify any css changes that you would like to do to the template. Our support is here to help with the core product, not make adjustments to it. Firebug will allow you to easily identify the css in question. We have a tutorial for how to use firebug here:
http://www.shape5.com/documentation/Miscellaneous/How-To-Use-Firebug