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HTML <sup> Tag


Superscript 到文本:

<p>This text contains <sup>superscript</sup> text.</p>
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Definition and Usage

The <sup> tag defines superscript text. Superscript text appears half a character above the normal 有时以较小的字体呈现。上标文本可用于, for footnotes, like WWW[1].

Tip: Use the <sub> tag to define subscript text.

Browser Support

<sup> Yes Yes Yes Yes Yes

Global Attributes

The <sup> tag also supports the Global Attributes in HTML.

Event Attributes

The <sup> tag also supports the Event Attributes in HTML.

Related Pages

HTML tutorial: HTML Text Formatting

HTML DOM reference: Superscript Object

Default CSS Settings

Most browsers will display the <sup> element with the following default values:


sup {
  vertical-align: super;
  font-size: smaller;
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