conatiner strecthing all the way to the top of the page

Im sure this is quite a simple question but i would like to know how i can make a div strecth al the way to the top of the page so if i put a background image on the body there would be nothing above or below the main content div.

Thanks.

Just tell your body to remove it's default padding/margin, and it'll be a good time.

body {padding:0; margin:0;}

Thanks

Ive got another question: on my site: http://crewdesign.co.uk, now ive added that border, i want to make a shadow effect around the main body, how can this be achieved?

You will have to use a repeated image depending on the effect you are looking for. Do you have a screenshot/example of what you are trying to create.

In Firefox you theoretically can do a 3px border in three different colors. I say theoretically because I've not tried it, I don't mean it doesn't work.

If you don't get bugs, you could (also theoretically) do it to a degree in css with nested div's and border colors. Really, if you want to go whole-hog, you could do as much gradation as you wanted. The code would be big but you wouldn't have to load a graphic, it just depends on which one loads faster.