Trouble with top margin

Hi,

I’m having a bit of trouble removing the space above the header on my blog. I’ve had a search on here and seen other people have asked but can’t find a solution that will work.

I was wondering if somebody would take a look at the site for me and see if they can see what may be the problem?

The blog is here and as you can see there is a small white space above the black bar at the top- I don’t want any space here at all.

I am using the Suffusion theme and have set the ‘space above header’ setting to 0… I have also added a custom include (found out about this from another post on here about the same thing) but that didn’t work either.

If anyone could help it would be greatly appreciated!

PS: I’m very new to this, and don’t know anything about coding etc, so if you have a fix please explain it as simply as possible!

Many Thanks,
James