Install scss plugin for fading link

I am trying to intall this plugin in my Sasson [http://drupal.org/project/sasson] Sub-theme in order to make a fading-in links:
http://thecssguru.freeiz.com/animate/

I added the _animate.scss file in - sites/all/themes/subtheme/animate/_animate.scss [BTW I have change it to scss from sass]

I have add:
@import "animate/animate.scss";

scss command:
a:hover {
+animate(fadeIn, 3s, 2s)
}
No success, help will be great.