title: Hover one box and highlight another
body: <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>.first {
    background: red;
    width: 100px;
    height: 100px;
  }
  .first:hover .outer-box {
    background: black;
  }
  .outer-box {
    width: 100px;
    height: 100px;
    background: green;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="icons"&gt;
    &lt;div class="first"&gt;&lt;/div&gt;
  &lt;/div&gt;
  
  &lt;div class="outer-box"&gt;&lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>How can I hover over one box and highlight the other?</p>
  
  <p>It would be easier if the boxes where in the same container but unfortunately they are not.</p>
  
  <p><a href="http://codepen.io/Sidney-Dev/pen/zNzbvJ" rel="nofollow noreferrer">Hope you can help perhaps updating my pen with no jquery if doable</a></p>