a.tweetthis,
a[href*="twitter.com/intent/tweet"] {
  color: #0084b4;
  background-color: #fff;
  border-bottom: 1px dashed;
}
a.tweetthis:hover,
a[href*="twitter.com/intent/tweet"]:hover {
  color: #3cf;
  border-bottom: 1px solid;
}
a.tweetthis:after,
a[href*="twitter.com/intent/tweet"]:after {
  content: " ";
  background: url(../js/plugins/tweetthis/icons/tweetthis.png) no-repeat;
  width: 16px;
  height: 16px;
  display: inline-block;
  margin-left: 3px;
  margin-right: 3px;
}