Greek Yogurt top spacing

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Hi,

I'm busy with my sitehttp://www.zwembadkessel.nl . The problem is that the spacing on top is to much... I would like to have the logo starting directly on the top and now there are a few centimeters white space.

Can I set this up somewhere? I haven't found it anywhere yet. I've removed the standard text block on top and added a picture with no white space on top.

Can someone help me?