[css3-page] 'fit-position' values out of sync with 'background-position'

The definition of the values of the 'fit-position' property in [1]
seems to be copied from the values of the 'background-position'
property in [2].  However, it omits the paragraph after the list of
values that explains how mixes of percentage or length values with
keyword values work.  The "Value" line in the property table also
contains an incorrect and outdated description of the grammar of the
property.  There may also be other incompatibilities; I haven't
checked closely.

I suggest that the "Value" line be corrected and the prose
definition of 'fit-position' refer to the definition of the values
of 'background-position' so that the meanings of the values of the
two properties remain consistent.

-David

[1] http://www.w3.org/TR/2006/WD-css3-page-20061010/#fit-position
[2] http://www.w3.org/TR/CSS21/

-- 
L. David Baron                                <URL: http://dbaron.org/ >
           Technical Lead, Layout & CSS, Mozilla Corporation