This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
The spec says "The <translation-value> values are defined as [<percentage> | <length>].", but doesn't say what <percentage> means. It should say something like """ The <translation-value> values are defined as [<percentage> | <length>], where a percentage translation in the X or Y direction is relative to the width or height of the element's border box, respectively. """
The blue box for the "transform" property contains "Percentages: refer to the size of the element's border box". Does this need to be in the "Transform Values and Lists" section too?
Aha. No, I think that's good enough.