That depends on the skin or template you're using. If you can't find it in the php, I'd say the easiest way to do it is to look at the page in your browser, and then view the source, and look at what classes and id's are being used where.

In my skin, they're in

.bPost h4 { ... }

Not sure if this is "standard" or not.

You need to check for hte class ids in the source of hte page from the View-Source form the top menu bar.
Rika K

Hi Rita K. I'm wondering why you dragged up a thread over 2 years old. Could it be to push the link I just removed? Methinks thou dost spam us!