title: Flexbox items not shrinking
body: <p>I have 4 boxes that I would like to resize as the size of my window changes.  Box 1 will shrink, however box 2, 3 and 4 do not.  What am I doing wrong?</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>.contents {
    display: flex;
    justify-content: flex-end;
    min-width: 0px;
  }
  
  .contents div:first-child {
    flex-grow: 1;
    padding: 5px;
  }
  
  .contents div {
    border-left: 1px solid red;
    flex-shrink: 1;
    min-width: 0px;
    overflow: hidden;
    padding: 5px 100px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="contents"&gt;
    &lt;div&gt;1 Really long text goes in here, really long text goes in here.&lt;/div&gt;
    &lt;div&gt;2 Lorem&lt;/div&gt;
    &lt;div&gt;3 Ipsum&lt;/div&gt;
    &lt;div&gt;4 Dolor&lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p><a href="http://codepen.io/anon/pen/OppdmQ?editors=1100#0" rel="nofollow noreferrer">http://codepen.io/anon/pen/OppdmQ?editors=1100#0</a></p>
  
  <p>Thank you.</p>