.social li {
  float:left;
  width:25px;
  height:25px;
  margin-left:5px;
}

.social li a {
  display:block;
  height:25px;
}

.social li a span {
  display:none;
}

.social li a.share span {
  display:block; 
  text-indent:-4000em;
  height:25px;
}

.social .facebook {
  background: left top transparent url('/resources/dyn/files/403406zddeb5de5/_fn/FacebookTiny.jpg') no-repeat;
}

.social .twitter {
  background: left top transparent url('/resources/dyn/files/403407zaaec6d73/_fn/twittericon.png') no-repeat;
}

.social .share {
  background: left top transparent url('/resources/dyn/files/403700z36ce4689/_fn/share_big_icon.gif') no-repeat;
}