title: How to change the size of an icon in an ion-header-bar?
body: <p>I'm using ionic version <code>1.2.4</code>.</p>
  
  <p>I'm essentially trying to reduce the size of the icon by changing it's font size. What would be the appropriate CSS selector to change the <code>font-size</code> of the icon in the code below? Nothing I try seems to be working.</p>
  
  <pre><code>  &lt;ion-nav-bar&gt;
      &lt;ion-nav-buttons side="right"&gt;
          &lt;button class="button button-clear"&gt;
              &lt;i class="icon ion-edit"&gt;&lt;/i&gt;
          &lt;/button&gt;
      &lt;/ion-nav-buttons&gt;
    &lt;/ion-nav-bar&gt;
  </code></pre>