title: Change the button icon from bootstrap is not working
body: <p>I've the following button and I want to add it bootstrap icon from the following link
  (the + icon in the begining)and currelntly its not working ,what Im missing here ?</p>
  
  <p><a href="http://getbootstrap.com/components/" rel="nofollow">http://getbootstrap.com/components/</a></p>
  
  <p>This is the button</p>
  
  <pre><code>&lt;div style="float:right; text-align:right;"&gt;
      &lt;p&gt;
          &lt;input type="button" class="glyphicon glyphicon-plus"  value="Add Row" onclick="addRow()" id="add-row" /&gt;
      &lt;/p&gt;
  &lt;/div&gt;
  </code></pre>