Backwards convert vB4 CSS classes to vB3
 

I am trying to assist someone else with a styling issue using vBulletin 3.8x but no longer have access to an active 3.8x forum.

In vBulletin 4.20 I'm adding custom styling in additional.css for the following classes:


.postcontent
.signature
.link

What are the equivalent 3.8 classes for these?