Here's an example of what I've been asking. This is the CSS I'm trying to emulate; it works as expected in IE7: http://css.maxdesign.com.au/listamatic/horizontal05.htm Here's what the identical code, copied and pasted, looks like in IE7 in my implementation: http://www.intranetintelligence.com/ii/meyertab.asp Screen shot: http://www.intranetintelligence.com/ii/images/navbarissue2.gif It's not breaking in the CSS styling the navlist; it's breaking in the header somewhere. Here's how I'm styling #wrapper and #header: #wrapper { margin:0px auto; padding:0px; border:0px; } #header { color:inherit; background-color:#ededed; text-align:left; margin:0px; padding:0px; border:0px; width:100%; float:left; } For the life of me, I can't see why IE is chopping off the tops of the tabs. joel