I have been using the "Customize Colors and Style" to change the Look and Feel of my webpage. 

Specifically, I have been using:

Functional Pages

List

Text, Link, and Link Hover

. . . to modify the size of the links/text of my forums and member directory.  I have noticed that while the text size of links/normal text in both the forums and the member directory are changed when I adjust the font size in "text, link, and link hover" the resulting changes do produce the same size links/text in forums and member directory.  In fact, the size of the links/normal text in the forums appear to be larger than that in the member directory.  Is there any way to change the font size of the links/normal text in the member directory without also changing the size of the links/normal text in the forums?

Thanks for your help!

The only way to customize the member directory separately is via CSS customization e.g. to customize the directory links you can use something like: (insert in Settings / Advanced customization (CSS)

#idPrimaryContentBlock1Content .membersTable A,
#idPrimaryContentBlock1Content .membersTable A:link,
#idPrimaryContentBlock1Content .membersTable A:active,
#idPrimaryContentBlock1Content .membersTable A:visited
{
  Color: #330099;
  text-decoration: underline;
  font-weight: bold;
  font-size: 12px;
}