title: Flex direction column issue with wrapping on IE11
body: <p>I am having a strange issue when trying to use flex wrap with a column on IE11. The general idea is when bullet points are added at a certain height the bullet points will go onto the next line. This seems to be working for me on the browsers I have checked apart from IE11. My code is below. Is there something IE specific I need to do to get this to work?</p>
  
  <p>Thank you in advance</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-css lang-css prettyprint-override"><code>.checkbox {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    font-size: 1.6rem;
    list-style: none;
    margin: 20px auto;
    width: 100%;
    max-width: 50%;
    min-width: 200px;
    max-height: 100px;
    padding-left: 0;
    text-align: left;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;ul class="checkbox"&gt;
    &lt;li&gt;Help to Buy&lt;/li&gt;
    &lt;li&gt;Part Exchange&lt;/li&gt;
    &lt;li&gt;Home Scheme&lt;/li&gt;
    &lt;li&gt;Chain Break&lt;/li&gt;
    &lt;li&gt;Early Bird&lt;/li&gt;
    &lt;li&gt;Stamp Duty&lt;/li&gt;
  &lt;/ul&gt;</code></pre>
  </div>
  </div>
  </p>