title: change background of parent div on hover
body: <p>I have this code:</p>
  
  <pre><code>&lt;div class="thumb_image_holder_orange"&gt;
      &lt;img src="http://dummyimage.com/114x64/000/fff.png" /&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>The image is centred in the middle of the div, how can I change the div's background when I hover over the image?</p>
  
  <p>I only know how to change the image properties when I hover over the div.</p>
  
  <p>Would prefer not to use jQuery, but don't mind too much.</p>
  
  <p>Thanks!</p>