title: Why does the child element not stay at the bottom of a fixed parent?
body: <p><strong>Update: it's a Chrome-only bug, as Josh Crozier figured it out.</strong></p>
  
  <p>Resize the window vertically, to see why the code below does not work. The child element does not stay at the bottom of the parent. Why?</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>header {
    background: red;
    height: 50%;
    left: 0;
    position: fixed;
    width: 300px;
  }
  header div {
    bottom: 0;
    position: absolute;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;header&gt;
    &lt;div&gt;Lorem&lt;/div&gt;
  &lt;/header&gt;</code></pre>
  </div>
  </div>
  </p>