All browser engines implement the HTML align attribute with a special value of text-align, rather than as the HTML spec describes. Those values are -{moz,webkit}-{left,right,center}, and for mostly legacy accidents, they are exposed to stylesheets and actively used (yikes).

Rather than keeping the status quo where the specification doesn't contain these values, and the HTML spec says something that no browser does, I propose to define how these works in terms of the -webkit- prefixed version.

Is there any reason not to do that? cc @bfgeek @frivoal