Alright, if this is the class you want to change
Code:
.discussionList .sectionFooter .contentSummary
{
float: left;
display: block;
}
it is inheriting the color from another class. If you want to change the color of that specific class, you can edit the discussion_list.css template directly or, if you're not a fan of template editing like me, open EXTRA.css and put something like this in there:
Code:
.discussionList .sectionFooter .contentSummary
{
color: pink;
}