section.level4.properties — Properties for level-4 sections
<xsl:attribute-set name="section.level4.properties" use-attribute-sets="section.properties"> </xsl:attribute-set>
The properties that apply to the containing block of a level-4 section, and therefore apply to the whole section. This includes sect4 elements and section elements at level 4.
For example, you could start each level-4 section on a new page by using:
<xsl:attribute-set name="section.level4.properties"> <xsl:attribute name="break-before">page</xsl:attribute> </xsl:attribute-set>
This attribute set inherits attributes from the general section.properties attribute set.