title: How to Create a Multi-Column Custom Content Element
body: <p>I'm trying to create a custom two-column content element in Typo3 Neos. I'm aware that Neos is shipped with multi-column functionality, but for this particular case I need to create my own custom content element.</p>
  
  <p>So far I've been able to create one of the columns (see below gist for code). However, as soon as I try to add the second column, the page just turns blank and no further changes can be made.</p>
  
  <p><strong>Gists</strong></p>
  
  <ul>
  <li>1 column activated (working properly): <a href="https://gist.github.com/anonymous/c5f33c7923faae26aa1a" rel="nofollow">https://gist.github.com/anonymous/c5f33c7923faae26aa1a</a></li>
  <li>2 columns activated (not working): <a href="https://gist.github.com/anonymous/85fc6994e9e2c5892a11" rel="nofollow">https://gist.github.com/anonymous/85fc6994e9e2c5892a11</a></li>
  </ul>
  
  <p>Any idea why that is happening, or how to solve this / build a multi-column custom content element in Neos?</p>