[css3-transitions][css3-values] transition-duration's inital value is '0' without a unit

I consider this to be an editorial change since it should have no effect on runtime behavior.

CSS3 Transitions defines the initial value of transition-duration as 0 without specifying a unit.
CSS3 Values & Units, however, does not state that time unit identifiers are optional for the value
0. 

So either the former picks a unit or we extend the optional-unit-for-zero exception of <length> 
to times for consistency. Although in the latter case it would seem coherent to do the same for
frequencies and angles as well. It's the bigger change but I lean towards the latter. It'd be
odd if width:0 was valid but not transition-duration:0 or transform:rotate(0). (Although that
ship may already have sailed, implementation-wise...).

Received on Friday, 22 October 2010 23:41:17 UTC