<ca>
Inserts the abbreviation “ca.” for circa.
Used exclusively as the self-closing tag <ca/>,
and should work anywhere you would write text.
Syntax
Attributes
This tag has no attributes.Children
This tag must be empty (i.e., no children or text allowed).Parents
This element may appear as an immediate child of the following elements:<alert> <angles> <articletitle> <attribution> <author> <biblio> <caption> <cell> <creator> <date> <dblbrackets> <delete> <description> <em> <entity> <fn> <foreign> <h> <idx> <insert> <instruction> <intertext> <li> <line> <minilicense> <p> <pubtitle> <q> <role> <see> <seealso> <shortlicense> <shorttitle> <sq> <stale> <subtitle> <support> <term> <title> <url> <xref> <year>