Centered Popup Window Problem

http://www.kirupa.com/developer/mx/full_site.htm

Click on “View Sample Site” See how the flash .swf is perfectly tucked to the edges of the html. The problem is, I dont know how this is done?

I’m using this code at the moment under the <head> in the html I publish from flash mx 2004:

<style type=“text/css”>
<!–
body {
height: 100%;
width: 100%;
margin: 0;
}
–>
</style>

I tried that plus, using the “Centered Popup Window Tutorial”. It works in Internet Explorer, but it doesnt in Mozilla. And I noticed, Kirupa’s one works in IE and Mozilla. What am I doing wrong?

I basically want my site no margins, like the site below. Click on the UK flag and see how that site has no margins as well:

http://www.sukiland.com/

Please help me guys :puzzled: