Addthis example

HTML

<!-- AddThis Button BEGIN -->
<div class="addthis_toolbox addthis_default_style ">
	<a class="addthis_button_facebook"></a>
	<a class="addthis_button_twitter"><span>Twitter</span></a>
	<a class="addthis_button_email"><span>Email</span></a>
	<a class="addthis_button_linkedin"><span>LinkedIn</span></a>
	<a class="addthis_button_compact"><span>Share</span></a>
</div>
<script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#pubid=xa-4fc9383e1ee05f1b"></script>
<!-- AddThis Button END -->

<style>
	.add_toolbox .addthis_button_facebook::after {
		content: "Facebook";
	  display: block;
  }
</style>

CSS

a {
  display: block;
  padding: 10px;
}

a span {
  color: red;
}