Re: [CSS3] Flexible Flow Module, proposal.

I just realized this.  Normal static-flow elements can only use flex
units within a container with the proper flow value.  However, there's
no particular mention of whether or not that restriction applies to
abspos/fixpos elements.

Does it?  The restriction for normal elements is mostly to ensure that
we have a good way of figuring out what "unused space" means when a
dimension is unrestricted (like height for standard containers) so you
don't have an element pushing its container to infinite size.  But
abspos/fixpos elements don't change the dimensions of their
positioning ancestor, so they should be able to use flexes in an
unrestricted manner.

So, can you use flex units on abspos/fixpos elements?  Position should
take flexes without a problem, as should margin.  Padding still needs
wording to the effect of "if a height/width isn't explicitly defined,
there is no unused space in that direction".

~TJ