how to change several things?

How can i change the color to the links on my categories box and also the bottom line of each box, its still green, Ive been searching and changing color from the css style sheet, but dont get the right one. Also how can i make just the links under my header color Black, not light grey.

Post a url to your site for specific solutions

.leftBoxContainer, .rightBoxContainer {
	margin: 0em;
	border: 1px solid #9a9a9a;
	border-bottom: 5px solid #336633;<------change green border
	margin-top: 1.5em;
	}




/* categories box parent and child categories */
A.category-top, A.category-top:visited {
	color: #008000;
	text-decoration: none;
	}
A.category-links, A.category-links:visited {
	color: #004080;
	text-decoration: none;
	}
A.category-subs, A.category-products, A.category-subs:visited, A.category-products:visited {
	color: #FF0000;
	text-decoration: none;
	}
SPAN.category-subs-parent {
	font-weight: bold;
	}
SPAN.category-subs-selected {
	font-weight: bold;
	}
/* end categories box links */

Thanks alot Gjh42!.

If i want to put an image on the background, where would i make those changes?

.leftBoxContainer, .rightBoxContainer {
margin: 0em;
border: 1px solid #9a9a9a;
border-bottom: 5px solid #336633;<------change green border
margin-top: 1.5em;
}

for the whole box, or

A.category-top, A.category-top:visited {
color: #008000;
text-decoration: none;
}

for individual category names.