tree ce1a895a7d606b0815216a321a3a2ab7dcff0b1f
parent 72ca9c27b54f3bd4621d6e98c2b6e23ba610e6d1
author Leon Senft <leonsenft@google.com> 1486681839 -0800
committer Leon Senft <leonsenft@google.com> 1486684725 -0800

Handles CSS2.1 pseudo element syntax

In CSS2.1, pseudo-elements were defined with a single ':' like pseudo-classes.
This change now handles this syntax and will properly parse them as pseudo-
elements instead of pseudo-classes.

Accepted pseudo-elements:
  :after
  :before
  :first-letter
  :first-line

To not break backwards compatibility with older browsers, this syntax is
preserved when emitting parsed styles.