XF 1.5 Change link color in editor box only

[DaveA]

When I insert a link into the editor box, it is the same blu-ish color as the rest of the links on the site. I'm trying to change the color that appears only in the editor box. Can anyone direct me how to do this? I have attached an example of what I'm looking to change. Thank you!

 

[DaveA]

I tried this from another thread but it's not working.

.ugc a:link, .ugc a:visited {
color: #cccccc !important;
}