This page has no html or body tags
explicitly. However, since the HTML spec says that every HTML
document has html and body elements, but
the tags are optional, CSS that is applied to these elements should
work even when the tags are omitted, since the elements are still
there. Thus this document should have a light green background on
body, with a darker green (html's
background) in body's margin (and, if body
is smaller than the viewport, in the space below body).
(Back to CSS Testing Information, David Baron)