May be formatted inline or as a displayed block, depending on context. Sometimes suppressed.

These elements contain alt: abbrev, acronym, address, area (db.area), area (db.area.inareaset), artpagenums, attribution, authorinitials, bibliocoverage, biblioid, bibliomisc, bibliomixed, bibliomset, bibliorelation, bibliosource, bridgehead, citation, citebiblioid, citetitle, city, confdates, confnum, confsponsor, conftitle, contractnum, contractsponsor, contrib, country, edition, email, emphasis (db._emphasis), emphasis (db.emphasis), entry, equation, fax, firstname, firstterm (db._firstterm), firstterm (db.firstterm), foreignphrase (db._foreignphrase), givenname, glosssee, glossseealso, glossterm (db._glossterm), glossterm (db.glossterm), holder, honorific, informalequation, informaltable, inlineequation, inlinemediaobject, issuenum, jobtitle, label, line, lineage, link, literal, literallayout, mathphrase, mediaobject, member, olink, optional, orgdiv, orgname, otheraddr, othername, pagenums, para, personname, phone, phrase (db._phrase), phrase (db.phrase), pob, postcode, primary, productname, productnumber, publishername, quote (db._quote), quote (db.quote), releaseinfo, remark, revnumber, revremark, secondary, see, seealso, seriesvolnums, shortaffil, simpara, state, street, subscript, subtitle, superscript, surname, table, term, termdef, tertiary, title, titleabbrev, trademark, uri, volumenum, wordasword, year.

The following elements occur in alt: text, inlinemediaobject.