Re: [css3-backgrounds] Example XV inconsistent with prose of section 3.6

On Mon, Sep 13, 2010 at 4:47 PM, Brian Manthos <brianman@microsoft.com> wrote:
> http://dev.w3.org/csswg/css3-background/
> 3.6  The ‘background-position’ property
> If only one value is specified, the second value is assumed to be ‘center’.
>
> 3.10  The ‘background’ shorthand property
> p { background: 40% url("chess.png") / 10em gray
>        round fixed border-box; }
> is equivalent to:
> …
> background-position: 40% 50%;
> …
>
>
> I believe this is incorrect.
>
> The equivalent is
>         background-position: 40% center;
> or
>         background-position: 40%;
>
>
> Am I misunderstanding?

'center' and '50%' are equivalent in the context of a background-position.

~TJ