A subscript (<sub>) indicates that text should be subscripted, or placed lower in relationship to the surrounding text. Subscripted text is often a smaller font than the surrounding text. Formatting may vary depending on your output process. This element is part of the DITA highlighting domain.
( text data or ph or codeph or synph or filepath or msgph or userinput or systemoutput or b or u or i or tt or sup or sub or uicontrol or menucascade or term or xref or cite or q or boolean or state or keyword or option or parmname or apiname or cmdname or msgnum or varname or wintitle or tm) (any number)
|Name||Description||Data Type||Default Value||Required?|
|%univ-atts; (%select-atts;, %id-atts;, translate, xml:lang)||A set of related attributes, described at %univ-atts;||parameter entity||PE not applicable||Not applicable|
|%global-atts; (xtrf, xtrc)||A set of related attributes, described at %global-atts;||parameter entity||PE not applicable||Not applicable|
|class||A common attribute described in Other common DITA attributes|
The power produced by the electrohydraulic dam was 10<sup>10</sup> more than the older electric plant. The difference was H<sub>2</sub>O.
OASIS DITA Language Specification v1.0 -- 09 May 2005
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