title: CSS flex-basis not working when flex-direction is 'column'
body: <p>My goal is to create a two-column layout with flexbox wherein the first column has two rows and the second column has one, like this:</p>
  
  <p><img src="https://i.stack.imgur.com/J6aje.png" alt="enter image description here"></p>
  
  <p>Setting <code>flex-basis: 100%</code> on the third item gives the desired effect, but only when the container's <code>flex-direction</code> is <code>row</code>:</p>
  
  <p><img src="https://i.stack.imgur.com/2e5aV.png" alt="enter image description here"></p>
  
  <p>Changing <code>flex-direction</code> to <code>column</code> results in the following, unless the <code>height</code> is set explicitly, which is infeasible in my project:</p>
  
  <p><img src="https://i.stack.imgur.com/GTH4K.png" alt="enter image description here"></p>
  
  <p>How can I get the first image without explicitly setting the <code>height</code> of the container?</p>
  
  <p><a href="http://plnkr.co/edit/staUIl0vea03fEP2hJOH?p=preview" rel="noreferrer">Here's a Plunker illustrating the problem</a>.</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>body {
    display: flex;
    height: 100px;
    width: 100px;
  }
  .container {
    display: flex;
    flex-direction: column; /* Setting this to `row` gives the expected effect,but rotated */
    flex-grow: 1;
    flex-wrap: wrap;
    /* height: 100%; */ /* Setting this fixes the problem, but is infeasible for my project*/
  }
  .item {
    flex-grow: 1;
  }
  .one {
    background-color: red;
  }
  .two {
    background-color: blue;
  }
  .three {
    background-color: green;
    flex-basis: 100%;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="container"&gt;
    &lt;div class="item one"&gt;&amp;nbsp;&lt;/div&gt;
    &lt;div class="item two"&gt;&amp;nbsp;&lt;/div&gt;
    &lt;div class="item three"&gt;&amp;nbsp;&lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>