The Fixed Layout properties section of the RS spec makes a number of informative default statements for the various rendition properties, but only one of them is a normative statement.
The default value reflowable MUST be assumed by EPUB Reading Systems as the global value if no meta element carrying this property occurs in the metadata section section [EPUB-33].
The default value statements for rendition:orientation and rendition:spread are both informative (and the same).
The default global value is auto if no meta element carrying this property occurs in the metadata section.
I would propose making these both normative MUST statements to match the statement made for rendition:layout and to clarify this section.
The Fixed Layout properties section of the RS spec makes a number of informative default statements for the various
renditionproperties, but only one of them is a normative statement.The default value statements for
rendition:orientationandrendition:spreadare both informative (and the same).I would propose making these both normative MUST statements to match the statement made for
rendition:layoutand to clarify this section.