title: Change the icon size of AngularJS Material icons
body: <p>I have referenced  then declared an icon</p>
  
  <pre><code>&lt;i class="material-icons"&gt;face&lt;/i&gt;
  </code></pre>
  
  <p>But how can I change the icon size?</p>
  
  <p>On oficial site <a href="https://design.google.com/icons/">https://design.google.com/icons/</a> I can see they using classes like <code>class="md-icon dp48"</code> but it is not working in my case.</p>