title: iframe height attribute not working with Firefox
body: <p>My Firefox (version 3.6.17 on Ubuntu) is not responding to the <code>height</code> attribute of my iframe. (I checked that it works on my Google Chrome.)</p>
  
  <pre><code>&lt;iframe src="www.example.com" width="100%" height="80%"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>or</p>
  
  <pre><code>&lt;iframe src="www.example.com" width="100%" height="40%"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>How can I make it work?</p>
  
  <p>If it's because my Firefox version is too old, how can I make it work for users who similarly have old version of Firefox?</p>