In your case it’s a combination of several values in style.css
#container is 991 px, and within the #container div you have two columns, #content and #right.
Your aim is to alter (I suspect increase) the ‘width’ of #right, but if you do that, you have to increase the ‘width’ of #container as well.
That won’t give you the expected result, since #right ul also is 200px wide, so you would have to increase that value as well. Also play with the right margin of #right (the second value: 80px).
If you change the width of #container, you’ll probably want to change the width of #header as well.
Peter
