Twenty Eleven – Header Image

Hello,

I’m editing the twenty ten template and have been able to do it quite well.
Apart from one thing, I can’t find the part that I need to edit so that my image comes up higher and I don’t have so much white space above it. The top of my image should be at the top of the white container.

Website

I presume it’s some padding or margins somewhere, but where! 🙂

All help is appreciated!