image in a rectangle

[clankill3r]

How can i get a image in a rectangle without scretching the image?

I just want to center the image and have it set as background but i don't know what element to use for that.

[sunfighter]

<style type="text/css">
body
{
background: url('images/PoweredByPopBox2.gif') no-repeat center center;
}
</style>

[clankill3r]

thanks but that's not what i meant, i should have been more clear.

 

I want to show multiple images in columns:

 

[ ] [ ] [ ] [ ]

[ ] [ ] [ ] [ ]

[ ] [ ] [ ] [ ]

[ ] [ ] [ ] [ ]

 

And therefore a image like this [    ] should be a rectangle so that's why i want to center them since often there is the more important content of a image.