The <sup> tag defines superscript text. Superscript text appears half a character above the normal line, and is sometimes rendered in a smaller font. Superscript text can be used for footnotes, like WWW [1]. Tip: Use the <sub> tag to define subscript text.

2025年3月13日 · The HTML element specifies inline text which is to be displayed as superscript for solely typographical reasons. Superscripts are usually rendered with a raised baseline using smaller text.

HTML <sup> 元素定义仅出于排版目的而显示为上标的行内文本。上标通常以较小的文本在高出基线的位置呈现。

<sup> 标签定义上标文本。 上标文本将会显示在当前文本流中字符高度的一半为基准线的上方，但是与当前文本流中文字的字体和字号都是一样的。 上标文本能用来添加脚注，比如 WWW [1] 。

2025年1月14日 · In this example ² makes the “2” appear as a superscript in the formula x². ^e places the “e” in superscript for the approximation of Euler’s constant 2.718^e. For more details read the article – HTML Superscript Combining Subscript and Superscript. You can combine <sub> and <sup> within the same content when needed.

2022年7月19日 · The <sup> tag in HTML describes the text as a superscript text. Here the text is above the baseline of the text and that text appears in a smaller font. Syntax: ^Content... Example 1:

HTML <sup> 标签被称为上标标签，用于定义上标文本。 <sup> 标签内的文本以上基线显示，并以比周围文本更小的字体大小呈现。 <sup> 标签对于定义数学公式和脚注很有用。

The <sup> tag is used to define a superscript text, which appears half a character above the regular line and is rendered smaller than the rest of the text. The tag is commonly used to define footnotes and formulas.

2023年9月30日 · The <sup> HTML element defines superscript text. You can combine this with <sub> for superscripts and subscripts in formulas. In a text browser not compatible with the <sup> tag, it is displayed as ordinary characters.

2023年9月30日 · In HTML, the tag creates superscript text. Superscript text is displayed half a character above the baseline and is rendered with a smaller font. The tag is commonly used to display footnotes or mathemcatical formulae.