I designed my website keeping Mozilla SeaMonkey as my testing browser, since of course I did not trust IE. (This was back when I was using Windows full time.) Firefox rendered the same as SeaMonkey, IIRC, since both of them use Gecko anyway. Today I visited my page: http://samvit.org/calendar/astro/wiki.htm#The_Basic_Structure using Konqueror 3.42 on KDE 3.42b (SUSE 10 RC1). I find that the half-length <hr> which I have placed after the "Basic Structure" section before the "Day" section is left-aligned. The same visited using Firefox 1.06 shows the <hr> object centered. Which is the "proper" W3C standard rendering? Or is there no such "proper" rendering and everything just depends on the internal stylesheets that the browser in question uses? P.S: I wonder why the W3C validation service says that no doctype is found for my page even though the very first line is: My pages passed HTML Tidy testing back on Windows, as well as online testing, also on Windows. In Linux, both Firefox and Konq show "no doctype" upon testing using the link at the bottom of all my pages. Can anyone shed light on this?