title: Textarea overflow:auto difference in height
body: <p>Following code renders a textarea which should have 3 visible rows:</p>
  
  <pre><code>&lt;textarea id="txtInput" rows="3" cols="20" style="overflow:auto"&gt;&lt;/textarea&gt;
  </code></pre>
  
  <p>However, in Firefox (version 20.0.1), 4 rows are shown instead of 3.</p>
  
  <p>See also <a href="http://jsfiddle.net/KxXsS/" rel="nofollow">http://jsfiddle.net/KxXsS/</a></p>
  
  <p>How can I fix this?</p>