A caption is an extended description of a mediaobject or figure or other formal or informal element. Unlike a textobject, which is an alternative to the other elements in the mediaobject, the caption augments the object.
Formatted as a displayed block.
The following elements occur in caption: address, anchor, bibliolist, blockquote, bridgehead, calloutlist, dialogue, drama, epigraph, equation, example, figure, formalpara, glosslist, indexterm (db.indexterm.endofrange), indexterm (db.indexterm.singular), indexterm (db.indexterm.startofrange), info (db.titleforbidden.info), informalequation, informalexample, informalfigure, informaltable, itemizedlist, literallayout, mediaobject, note, orderedlist, para, poetry, procedure, qandaset, remark,
revhistory, sidebar, simpara, simplelist, table, task, variablelist.