SUB - Subscript

The SUB element is used for subscripts. Since SUB is inherently presentational, it should not be relied upon to express a given meaning. However, it can be useful for chemical formulas and mathematical indices, where the subscript presentation is helpful but not required. For example:

• Chemical formulas include H<SUB>2</SUB>O (water) and C<SUB>21</SUB>H<SUB>27</sub>NO (methadone).
• Let <VAR>x</VAR> = <VAR>x<SUB>1</SUB></VAR> + <VAR>x<SUB>2</SUB></VAR> + ... + <VAR>x<SUB>n</SUB></VAR>.

More Information

• SUB in W3C HTML 4.0 Recommendation
• SUB in W3C HTML 3.2 Recommendation
• SUB in WDG HTML 3.2 Reference
• SUB in Learning HTML 3.2 by Examples

Copyright © 1998 by Liam Quinn. This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at http://www.opencontent.org/openpub/).