title: How to find actual rendered values of elements set to 'auto' using JavaScript
body: <p>Suppose I have the following html, and no CSS</p>
  
  <pre><code>&lt;div&gt; 
    here is some content in this div. it stretches it out
    &lt;br /&gt;and down too!
  &lt;/div&gt;
  </code></pre>
  
  <p>Now I want to get the actual pixel width and height that the browser has rendered this div as.</p>
  
  <p>Can that be done with JS?</p>
  
  <p>Thank you.</p>