The sub element indicates that text should appear with subscript highlighting, or placed lower in relationship to the surrounding text. Subscripted text is often a smaller font than the surrounding text. Formatting might vary depending on your output process. This element is part of the highlighting domain. Use this element only when a more semantically appropriate element is not available.
Note: Style sheets can be used to format the sub element differently, just like any other element can be restyled. Thus, it is not the case that content in sub elements will necessarily be rendered as subscript.
See appendix for information about this element in OASIS document type shells.
+ topic/ph hi-d/sub
<p>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.</p>
The following attributes are available on this element: Universal attribute group and outputclass.