CSS for text colour in Popular Posts Widget

Hi,

Hope I’ve posted this in the right place; and apologises for the noob question.

http://selebspycom.ipage.com/

I am trying to change the style of the Popular posts widget, at the end of the right sidebar. By default the links in the widget were displaying as pink (standard link colour). I edited the wpp.css file for the plug-in to change the text colour to grey, which did the trick:

/* title styles */
.wpp-post-title {
        color:#333333;
}

However I can’t work out how to do the following: instead of the block pink highlighting, I just want the text to change to pink colour on hover over (like the post titles do.
e.g.

Normal = grey (#333333)
Hover over = pink (#e55b60)

Is this something I can easily do indirectly in the wpp.css file?

Thanks in advance!