A <substep> element has the same structure as a <step>, except that it does not allow lists of choices or sub-steps within it, in order to prevent unlimited nesting of steps.

Content models

See appendix for information about this element in OASIS document type shells.


- topic/li task/substep


See substeps.


The following attributes are available on this element: Universal attribute group (with a narrowed definition of @importance, given below) and outputclass.

Describes whether the current <step> or <substep> is optional or required. Output processors might highlight steps that are optional or required. Allowed values are "optional", "required", or -dita-use-conref-target.

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