Service Block Clickable?

I know there is a little squiggly icon that you’d click to enter the page.. (Boss wants the whole block to be clickable?..) any idea my dear Sir?
I did find the 2 line in style.css
.blocklink{ display:block; width:1px; height:32px; margin:0 auto; text-indent:-999999px;}

.blocklink{ display:block; width:36px; height:32px; background:url(images/blocklink.png) no-repeat;}
.. just a bit confused on how to manipulate them

http://www.dataconnectus.com