Icon only toolbar button

Icon only toolbar button

It is possible to have a toolbar buttons without an icon. But how do I create a button without text? I noticed that:

  1. <a id="btn-fav" data-icon="star" class="ui-btn-right" href="#" >&nbsp;</a>
does the trick but leaves me with space after the icon. Leaving the text blank result in an odd formatted button. Someone an idea?