[i18n-activity] rubyAlign and wide ruby text

r12a has just created a new issue for 
https://github.com/w3c/i18n-activity:

== rubyAlign and wide ruby text ==
10.2.34 tts:rubyAlign
https://www.w3.org/TR/2016/WD-ttml2-20161117/#style-attribute-rubyAlign

> The tts:rubyAlign attribute is used to specify the position of ruby 
text within the inline area generated by the ruby text container 
annotation.

What about the (common) case where the ruby text is longer than the 
base text?  Note that in CSS a property such as ruby-align applies the
 distribution of text to the smaller of the ruby text or base text, 
rather than just to the ruby text.

Please view or discuss this issue at 
https://github.com/w3c/i18n-activity/issues/319 using your GitHub 
account