title: Why flex elements are not going to next line when flex-basis is provided?
body: <p>I am trying to add width to the flex elements. I have provided the <code>flex-basis:20%</code>. How can I get the 6th and 7th element in next row/line? </p>
  
  <p>Adding the scratch pad link below: <a href="http://scratchpad.io/zany-store-3715" rel="noreferrer">scratchpad.io</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>#wrapper {
    display: flex;
  }
  .children {
    flex-basis: 20%;
    border: 1px solid;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="wrapper"&gt;
    &lt;div class="children"&gt;
      1
    &lt;/div&gt;
    &lt;div class="children"&gt;
      2
    &lt;/div&gt;
    &lt;div class="children"&gt;
      3
    &lt;/div&gt;
    &lt;div class="children"&gt;
      4
    &lt;/div&gt;
    &lt;div class="children"&gt;
      5
    &lt;/div&gt;
    &lt;br&gt;
    &lt;div class="children"&gt;
      6
    &lt;/div&gt;
    &lt;div class="children"&gt;
      7
    &lt;/div&gt;
  
  
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>Thanks in advance.</p>