| Depr. | Empty | Version |
|---|---|---|
| No | No | HTML 2 |
| IE5.5+ | FF1+ | SA1.3+ | OP9.2+ | CH2+ |
|---|---|---|---|---|
| Full | Full | Full | Full | Full |
Syntax
<sup>
</sup>
Description
The sup
element is used to define superscript—text that appears half a character’s
height above the baseline of the line it’s on. It’s most often used in
mathematical formulas, or for the purposes of indicating footnote
references.
The example would render on screen as shown in Figure 1.
Figure 1. An example of 
sup at work
Example
Here’s an example in which the
sup element is used for the purpose of indicating a
footnote reference:
<p>This document is a summary of findings. More details on the
previous cases can be found in the referenced 'Prior Art'
<sup>1</sup> and 'Intellectual Property History'<sup>2</sup>
documents.</p>
Use This For …
This element can be applied to any text content, but its use is likely to be limited to footnote and mathematical applications.
Compatibility
| Internet Explorer | Firefox | Safari | Opera | Chrome | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.5 | 6.0 | 7.0 | 8.0 | 1.0 | 1.5 | 2.0 | 3.0 | 3.5 | 1.3 | 2.0 | 3.1 | 4.0 | 9.2 | 9.5 | 10.0 | 2.0 |
| Full | Full | Full | Full | Full | Full | Full | Full | Full | Full | Full | Full | Full | Full | Full | Full | Full |
The
sup element enjoys good browser
support.
User-contributed notes
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