I am about to change some existing code based on framesets .
I have a problem, how do I align the code EXACTLY to the right or left using this frameset:

Code:
<frameset rows="300px,*" border=0 valign=top style="position:fixed; top:0px;">
	 <frame name="top" src="operator.asp" frameborder=1 scrolling=no>
		 <frameset cols="50%,*">
	 		   <frame name="venstre" src="intro.htm" frameborder=1 style="position:fixed; right:0px;">
			   <frame name="right" src="blank.htm" frameborder=1 style="position:fixed; left:0px;"> 
	     </frameset>
</frameset>
If I make some code in the file Intro.htm and align it to the right, then there is a margin of appr. 10 px. HOW DO I GET RID OF THAT?