I haven't dealt with this since the mid 90's.
<a href="http://www.google.com" class="learnmorebutton">learn more</a>
When I click a link to say http://www.google.com, facebook renders google in the frame. I don't want this. I want the link to take me to google and out of facebook.com.
See the image to see the problem:
Try:
<a target="_top" href="...">Link</a>