[kube]

I reread that and I don't think I was clear enough.

For clarity sake as an example:

locate the skin1/skin1.css file. and locate ProductDetailsTitle within the file (this one is a little tricky as it affects a few titles as well as the price within the product item page but it will give you a gist)

it will read something like...

.ProductDetailsTitle {
COLOR: #FF3300;
FONT-WEIGHT: bold;
FONT-SIZE: 12px; /* <- change this to 22px to get a feel for its effect, this means 22 pixels big */
}

Hope that's a little better for understanding.
Regards,
Doms