<div id='logo' style='max-width:420px;'>
<center><img style='max-width:600px;max-height:200px;' src='http://prod.static.cardinals.clubs.nfl.com/nfl-assets/img/gbl-ico-team/ARI/logos/home/large.png' /></center>
</div>
Try that above. What makes this not have a background is that the first div's ID is not "companyinfo" which applies some default styling to the login page.
Matt Petty
Senior Software Developer
SmarterTools Inc.
www.smartertools.com