A follow up question to #4979:

What is the effect of line-height on a nested ruby container. As far as the effect on its insides, there should be no difference compared to a non-nested ruby container, and that should do nothing (assuming we resolve that way in 4979). What about its effects towards the outside. I can see two possibilities:

• There is no effect
• it does nothing to the outer ruby, but it does affect the line that it is in, in the same way any (possibly nested) inline box would.