RE: [css3-2d-transforms][css3-images] <position> grammar is duplicated or points to the wrong spec

[Tab Atkins Jr.:
> 
> Nah, the (implicit) proposed solution patches calc() to work in the
> intuitive way for <position>, so <percentage>s and <length>s are tracked
> separately in calc() and then applied as two steps.
> 
Intuitive for whom? I'd love to see how many authors gets this one right.
As noted in a separate thread, it is natural to think of CSS functions as
JS functions, especially this one. I'm willing to bet you a bottle of wine
in Paris* that most people will expect the exact results Brian expects.

*: of my choice...