ANSI/NISO Z39.96-2015

10 Article Authoring Tag Set, version 1.1 • 10.4 Elements

10.4.159 <rt> Ruby Textual Annotation

This element is one half of a Ruby annotation (<ruby>), and it contains the text that annotates the material in the Ruby Base (<rb>), which may be a small as a single character.

Attributes:
Content model:

Text, numbers, or special characters, zero or more