<sub> Subscript

Used to mark text that should appear lower than the baseline and slightly smaller; inferior or subscript text.
Attributes

Base Attributes

Models and Context
May be contained in
Description
Any combination of:
Content Model
<!ELEMENT  sub          (#PCDATA %emphasized-text;)*                 >
Expanded Content Model

(#PCDATA | email | ext-link | uri | inline-supplementary-material | related-article | related-object | citation-alternatives | element-citation | mixed-citation | std | bold | fixed-case | italic | monospace | num | overline | roman | sans-serif | sc | strike | underline | ruby | alternatives | inline-code | inline-graphic | inline-media | private-char | chem-struct | inline-formula | tex-math | mml:math | abbrev | index-term | index-term-range-end | milestone-end | milestone-start | named-content | styled-content | fn | target | tbx:entailedTerm | xref | std-ref | sub | sup)*

Tagged Sample

Expression in text

...
<non-normative-note>
 <label>NOTE</label>
 <p>R<sub>max</sub> and R<sub>min</sub> are as defined in 
  <std type="undated" std-id="iso:std:iso:15416"
   ><std-ref>ISO/IEC 15416</std-ref></std>.</p>
</non-normative-note>
...