title: Ionic 2 - ion-scroll doesn't pick content height
body: <p>In my app I have a panel which shows/hides on the click of a button. This panel has a max-height of 300px. </p>
  
  <p>The content inside the panel gets added/removed and the panel should adjust it's height to fit the content. Since I want to be able to scroll the content inside this panel, I've used a <code>ion-scroll</code>. </p>
  
  <p>The problem is, the <code>ion-scroll</code> doesn't seem to take the height of it's content. I have to specifically set a height in 'px' for it to show it's content. Anyone know what I can do?</p>
  
  <p>Note: Giving a height to the <code>ion-scroll</code> in percentage is not working either.</p>
  
  <p>This is the structure of my HTML</p>
  
  <pre><code>&lt;ion-content&gt;
   &lt;div style="position: fixed; bottom: 0; width: 100%; z-index: 1; max-height: 300px;" *ngIf="showPanel"&gt;
    &lt;ion-scroll&gt;Scroll content goes here.&lt;/ion-scroll&gt;
   &lt;/div&gt;
  &lt;/ion-content&gt;
  </code></pre>
  
  <p>I'm using Ionic 2 - Beta 10.</p>