Header width and page content differences

[Guest lewisedavis]

Hello guys and girls, 

 

On our website www.finegrime.co.uk we need to be able to make the header wider so that the frame (built into the image) looks like it is framing the content below. 

The width of the header and page content/body is is 1000px so is there a way you know of that I can either:

• make the header wider than the page content below it 
• make the page content narrower than the 1000px header above it

If you take a look at the site you should see what I mean. 

 

thanks for your help in advance and if you need to know anything just say. 

 

p.s. im using the grey kurouto skin which I have been customising the css here and there but nothing major.