[css3-images] CSS element reference identifier

http://dev.w3.org/csswg/css3-images/#element-reference
(Overview.html revision 1.269) says the following:

  # (CSS does not define how an element acquires a CSS element
  # reference identifier; that is determined by the host language.) 

I think this should have more useful text.  For example, it could
say:

  For example, for [HTML5], see the definition of CSSElementMap at
  <a>...</a>.

Even better, it could perhaps even define the behavior for HTML, but
allow other languages to define different behavior.

I think specifying features in CSS that require the host language to
define something, without giving any hint as to what happens for the
common use case, is a bad idea.  It makes it hard for readers of the
specification to figure out how to use the language, and it has the
potential to create a gap between specifications that's never filled
in.

-David

-- 
𝄞   L. David Baron                         http://dbaron.org/   𝄂
𝄢   Mozilla                           http://www.mozilla.org/   𝄂

Received on Sunday, 5 February 2012 20:59:34 UTC