title: Can I position an element fixed relative to parent?
body: <p>I find that when I position an element fixed, it doesn't matter if the parent is positioned relative or not, it will position fixed, relative to the window?</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 {
    width: 300px;
    background: orange;
    margin: 0 auto;
    position: relative;
  }
  
  #feedback {
    position: fixed;
    right: 0;
    top: 120px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="wrapper"&gt;
      ...
      &lt;a id="feedback" href="#"&gt;Feedback&lt;/a&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
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