Logo positioning issue

Hi all, I would like to have my logo placed in the left upper corner of my home page - without changing any other part of the layout (especially paddings etc.). I tried to solve it via editing the stylesheet but it didn't work out. This is the URL: http://richemont-club.ch/wordpress The logo I am talking about is the "Richemont Club"-one with the white cross. Thanks a lot for your help. Ben