Background problem

[freesylekungen]

When I'm trying to use a background image it duplicates to fill up the whole space, but what do I have to do to get that picture in center or to get it stretched in stead?

might be a stupid question but I'm very new to html coding..

[orcrist]

{background-repeat:no-repeat;} to stop it from duplicating.
{background-position:bah, go here:
http://www.w3schools.com/css/pr_background-position.asp

[mark87]

You can't use CSS to stretch a background image.