How to change the color of the links at the top ?

when you add these to the _header.html  there will be links at the top but the links are not clear because it is the same color with background. How can we change the links' color ? please somebody help...

here it is

div class="topestMenu">
__TOP_Links__
__TOP_News__
__TOP_ContactUs__
__TOP_About__
__TOP_Privacy__
__TOP_Termsofuse__
__TOP_FAQ__
__TOP_Feedback__
__TOP_Aff__
__TOP_Invitefriend__
__TOP_Bookmark__
__switch_lang_block__
</div>

Use firefox with fireburner plugin, now you can see with and where you have to change your colors and more...