HTML%20Interview%20Questions%20and%20Answers

Question: Why doesn't <TABLE WIDTH="100%"> use the full browser width?

Answer: Graphical browsers leave a narrow margin between the edge of the display area and the content.
Also note that Navigator always leaves room for a scrollbar on the right, but draws the scrollbar only when the document is long enough to require scrolling. If the document does not require scrolling, then this leaves a right "margin" that cannot be removed.