I tried to use width: in my CSS to affect the width of my legend tag as I was hoping to have them all be the same size. Didn't seem to work. Is it because I'm going about it the wrong way? Or is it just not possible? For a visual go to http://dev.johnconde.net/DOM/dom4.php (You'll need a Gecko-based browser to see this). My goal is to have the headers of the fieldsets (the legend tags) be uniform on that page.