Different link colors

Changing the color under template, options,menus for links to white as necessary for my columns left and right, it also changes the links for the articles in the middle to white.
Is there a piece of code to either assign the link color for articles to black (where to put) or for white (left & right columns)
I found in template_css.css
a:link, a:visited {
color: #FFFFFF;
}
but changing it to black means changing for modules and articles.
What would be the piece of code to leave everything for the columns in white but just changing the links for the articles in the middle to black?
Thanks

Split taht to:

.content_wrap a:link, .content_wrap a:visited{
....
}

.column_left a:link, .column_left a:visited,
.column_left a:right, .column_right a:visited{
....
}

so first would be for central area and second for columns.

shall I just create those two sections at the end of template_css.css or in template_css.php?

I included in template_css.css

.column_left a:link, .column_left a:visited,
.column_left a:right, .column_right a:visited{
color: #FFFFFF ;
}
to display links in white but nothing changed: color was kept blue

You can add that at bottom of template_css.css , try using !important flag

Thx,
is there a way to achieve a "continuous" background? At the moment the background ar png picture of a specific size. If the article is longer the next repetitive background image is merged to the previous one and you see in the back two images.
First the length of the module is as long as the background pictures height independent from the content (see picture).
I I would like to have a kind of repetitive content what would be the code? Do I have to create just a small picture and it is smothly extended similar to the white background of the main menu?

In the picture below the moduel in the right column should end below the logo. How can I achieve it that the module background is then only as long as its content? Is it via the repeat code with a small background picture?
If so how does it work