Aligning to the edges of the browser

hey…whats up ladies and gents…
I wanna make certain elements such as buttons or just tables come all the way to the edge of the browser. either on top or to the left. Like have to space between them. I tried with 100% table width but there is still a white gap. This question is up for grabs for everyone, so dont’ be shy, I know kirupaville seems a bit shy lately… Norie, ur up for the challenge 1st if u have the apetite…
later
Omar