If the ruby text is wider than the base text you can specify whether or not it overhangs any surrounding base text, and to what amount, using the ruby-overhang property. It takes the following values: auto, start, end, and none.
To allow the ruby text to overlap surrounding base characters on both sides use ruby-overhang: auto
. It is up to the
implementation to decide how much overlap to allow, but the JIS 4051 standard recommends a maximum of one ruby character width. The implementation
may also apply this selectively depending on the type of character - again there are rules for this in the JIS standard.
This is the default value.
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