This property controls position of the ruby text with respect to its base.

]]> This property controls how ruby annotation boxes should be rendered when there are more than one in a ruby container box: whether each pair should be kept separate, the annotations should be collapsed and rendered as a group, or the separation should be determined based on the space available.

]]> This property specifies how text is distributed within the various ruby boxes when their contents do not exactly fill their respective boxes. Note that space distributed by ruby-align is unrelated to, and independent of, any space distributed due to justification.

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