Let me add this. Since the page's blue background is an image (in
'body'), you can also copy the background line from 'body' into
#header-wrapper and #header. In that case, you might leave padding-
bottom alone, or play with it a little.

That line is:
background: #4386ce url(http://www.blogblog.com/thisaway_blue/
bg_body.gif) repeat-x left top;