title: iFrame and "max-height"
body: <p>Any ideas for using <code>max-height</code> on a borderless/scrolless iFrame so if it ends up being too tall the browser doesn't render a giant black area to fill in the rest of the iFrame?</p>
  
  <p>I've tried setting <code>height="100%"</code> and <code>max-height="xx"</code> but that doesn't seem to work.</p>
  
  <p>Many Thanks!</p>