Angular2 Material2 <md-spinner> not showing but is working : <p>My assumption is that my css is not correct, but alas I cannot figure this out.</p>

<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
<div class="snippet-code">
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div *ngIf="loading"&gt;
  &lt;md-progress-circle mode="indeterminate" color="warn"&gt;Loading...&lt;/md-progress-circle&gt;
&lt;/div&gt;
&lt;md-list&gt;
  &lt;md-list-item *ngFor="let incident of incidents"&gt;
    &lt;h3 md-line&gt; {{name}} &lt;/h3&gt;
    &lt;p md-line&gt;
      &lt;span&gt;{{date}} &gt; &lt;/span&gt;
      &lt;span&gt;{{text}}&lt;/span&gt;
    &lt;/p&gt;
  &lt;/md-list-item&gt;
&lt;/md-list&gt;</code></pre>
</div>
</div>
</p>

<p><a href="https://i.stack.imgur.com/NX89R.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/NX89R.gif" alt="enter image description here"></a></p>
