Position background-image

Hello wordpress users,

The reason why I am here is because I can’t fix a problem with my background image. It wouldn’t fit in the way I want.

Take a look at my project:
Click here

as you noticed, the purple background image in the white content holder is not on the right top.

This is was I am doing now:

background-image:url(png/cirkels_raja.png);
 background-position:top right;
 background-repeat:no-repeat;

on div coreContent.

Can anyone help me on this one?

Thank you very much for your support.