RE: [CSS OM] list of issues

[Tab Atkins:]
> On Wed, Jul 6, 2011 at 5:08 AM, Daniel Glazman <daniel.glazman <at> disruptive-
> innovations.com> wrote:
> > Le 06/07/11 10:09, Anne van Kesteren a écrit :
> >
> >> Well per the current specification it would only be ":after",
> >> "::after", ":before" and "::before". If we allow new post CSS 2.1
> >> pseudo-elements it would only be "::foo" where foo is the name of the
> new pseudo-element.
> >
> > First line and first letter ? Marker ?
> 
> Exactly the same answer.  :first-line and :first-letter are explicitly
> allowed by Selectors for legacy reasons, so they're accepted alongside the
> double-colon form.  ::marker has no such concern, so only the double-colon
> form is accepted.
> 
If that the expectation then it should be explicitly stated. Fwiw, WebKit does
not meet your expectation today (it allows the name with no prefix column).