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                                                 928
            CHAPTER 10                                                    Document Interchange



KEY                      TYPE   VALUE

TextDecorationType       name   (Optional; not inheritable) The text decoration, if any, to be applied to the
                                element’s text.
                                   None          No text decoration
                                   Underline     A line below the text
                                   Overline      A line above the text
                                   LineThrough A line through the middle of the text
                                Default value: None.
                                This attribute applies to all text content items that are children of this ele-
                                ment or of its nested ILSEs, if any. The attribute does not apply to nested
                                BLSEs or to content items other than text.
                                Note: The color, position, and thickness of the decoration should be uniform
                                across all children, regardless of changes in color, font size, or other varia-
                                tions in the content’s text characteristics.

RubyAlign                name   (Optional; inheritable; PDF 1.5) The justification of the lines within a ruby
                                assembly:
                                   Start        The content is to be aligned on the start edge in the inline-
                                                progression direction.
                                   Center       The content is to be centered in the inline-progression
                                                direction.
                                   End          The content is to be aligned on the end edge in the inline-
                                                progression direction.
                                   Justify      The content is to be expanded to fill the available width in
                                                the inline-progression direction.
                                   Distribute   The content is to be expanded to fill the available width in
                                                the inline-progression direction. However, some space is
                                                also inserted at the start edge and end edge of the text.
                                                Normally, the spacing is distributed using a 1:2:1
                                                (start:infix:end) ratio. It is changed to a 0:1:1 ratio if the
                                                ruby appears at the start of a text line or to a 1:1:0 ratio if
                                                the ruby appears at the end of the text line.

                                Default value: Distribute.
                                This attribute may be specified on the RB and RT elements. When a ruby is
                                formatted, the attribute is applied to the shorter line of these two elements.
                                (If the RT element has a shorter width than the RB element, the RT element
                                is aligned as specified in its RubyAlign attribute.)

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