Sometimes on my website i get extra padding/margin at the very top of the page which shifts everything down. As i have a black banner as my page background this stays put and the content lowers and looks broken. Is this a CSS issue with padding or margins? I'm really stuck as this doesn't happen everything i visit the site - it seems a bit random.
My website is: http://www.kerryellisweb.co.uk
Image of the problem is attached.
Grateful for any help.