[webvtt] Cue identifier can't be matched by standard css rules

fcartegnie has just created a new issue for https://github.com/w3c/webvtt:

== Cue identifier can't be matched by standard css rules ==
Because cue identified isn't specified, it can start with a digit.

It prevent being tokenized/selected by parser following the CSS identifier naming 
(see CSS3 4.2. Tokenization for bnf)

```

ident | ::= | '-'? nmstart nmchar*
-- | -- | --
name | ::= | nmchar+
nmstart | ::= | [a-zA-Z] \| '_' \| nonascii \| escape


```

Please view or discuss this issue at https://github.com/w3c/webvtt/issues/403 using your GitHub account

Received on Monday, 30 October 2017 13:29:23 UTC