title: Bootstrap Glyphicon as button
body: <p>Say I wanted to use a glyphicon as a submit button for a form. How would I go about doing this?</p>
  
  <p>To elaborate, I want no 'visible' elements of a traditional button. Just a glyphicon, as it would appear normally in text.</p>
  
  <p>I have tried using <code>&lt;button&gt;</code> and <code>&lt;input type='button'&gt;</code> with the glyphicon classes, and (as one would expect), no luck.</p>