[Plugin: Link Library] featured link and css editor

Hello,
Thanks for your great plugin, I really enjoy.

My question is :
How highlight text of the featured links (those I cheked on the insert links form) ? I just want these links brighter than the others.

I noticed they appeared in the code source of the page with the class “track_this_link featured” in the a tag.

I tried to insert the followig line code in the css editor but it doesn’t work :
a.track_this_link featured {background-color: #FFFF00}

Any idea ?
Thanks

http://ww.wp.xz.cn/extend/plugins/link-library/