Тег SUP

HTML Text Formatting

HTML contains several elements for defining text with a special meaning.

Example

This is _subscript and superscript

HTML Formatting Elements

Formatting elements were designed to display special types of text:

• — Bold text
• — Important text
• — Italic text
• — Emphasized text
• — Marked text
• — Smaller text
• — Deleted text
• — Inserted text
• — Subscript text
• — Superscript text

HTML and Elements

The HTML element defines bold text, without any extra importance.

Example

The HTML element defines text with strong importance. The content inside is typically displayed in bold.

Example

HTML and Elements

The HTML element defines a part of text in an alternate voice or mood. The content inside is typically displayed in italic.

Tip: The tag is often used to indicate a technical term, a phrase from another language, a thought, a ship name, etc.

Example

The HTML element defines emphasized text. The content inside is typically displayed in italic.

Tip: A screen reader will pronounce the words in with an emphasis, using verbal stress.

Example

HTML Element

The HTML element defines smaller text:

Example

HTML Element

The HTML element defines text that should be marked or highlighted:

Example

Do not forget to buy milk today.

HTML Element

The HTML element defines text that has been deleted from a document. Browsers will usually strike a line through deleted text:

Example

My favorite color is blue red.

HTML Element

The HTML element defines a text that has been inserted into a document. Browsers will usually underline inserted text:

Example

HTML Element

The HTML _{element defines subscript text. Subscript text appears half a character below the normal line, and is sometimes rendered in a smaller font. Subscript text can be used for chemical formulas, like H2O:}

Example

HTML Element

The HTML element 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] :

Example

This is ^{superscripted} text.

HTML Exercises

HTML Text Formatting Elements

Tag	Description
	Defines bold text
	Defines emphasized text
	Defines a part of text in an alternate voice or mood
	Defines smaller text
	Defines important text
	Defines subscripted text
	Defines superscripted text
	Defines inserted text
	Defines deleted text
	Defines marked/highlighted text

For a complete list of all available HTML tags, visit our HTML Tag Reference.

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HTML Tag

The 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] .

Browser Support

Global Attributes

Event Attributes

Related Pages

Default CSS Settings

Most browsers will display the element with the following default values:

Example

COLOR PICKER

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Sup tag in html

Отображает шрифт в виде верхнего индекса. Шрифт при этом отображается выше базовой линии текста и уменьшенного размера.

Синтаксис

Закрывающий тег

Атрибуты

Аналог CSS

      
Великая теорема Ферма
 
X n + Y n = Z n
 
где n - целое число > 2
  

Результат данного примера показан ниже.

Рис. 1. Вид текста, оформленного с помощью тега

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Не выкладывайте свой код напрямую в комментариях, он отображается некорректно. Воспользуйтесь сервисом cssdeck.com или jsfiddle.net, сохраните код и в комментариях дайте на него ссылку. Так и результат сразу увидят.

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: The Superscript element

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.

Try it

Attributes

This element only includes the global attributes.

Usage notes

The element should only be used for typographical reasons—that is, to change the position of the text to comply with typographical conventions or standards, rather than solely for presentation or appearance purposes.

For example, to style the wordmark of a business or product which uses a raised baseline should be done using CSS (most likely vertical-align ) rather than . This would be done using, for example, vertical-align: super or, to shift the baseline up 50%, vertical-align: 50% .

Appropriate use cases for include (but aren’t necessarily limited to):

• Displaying exponents, such as «x 3 .» It may be worth considering the use of MathML for these, especially in more complex cases. See Exponents under Examples below.
• Displaying superior lettering, which is used in some languages when rendering certain abbreviations. For example, in French, the word «mademoiselle» can be abbreviated «M lle «); this is an acceptable use case. See Superior lettering for examples.
• Representing ordinal numbers, such as «4 th » instead of «fourth.» See Ordinal numbers for examples.

Examples

Exponents

Exponents, or powers of a number, are among the most common uses of superscripted text. For example:

p> One of the most common equations in all of physics is var>Evar>=var>mvar >var>cvar>sup>2sup>. p> 

Result

Superior lettering

Superior lettering is not technically the same thing as superscript. However, it is common to use to present superior lettering in HTML. Among the most common uses of superior lettering is the presentation of certain abbreviations in French:

p>Robert a présenté son rapport à Msup>llesup> Bernard.p> 

Result

Ordinal numbers

Ordinal numbers, such as «fourth» in English or «quinto» in Spanish may be abbreviated using numerals and language-specific text rendered in superscript:

p> The ordinal number "fifth" can be abbreviated in various languages as follows: p> ul> li>English: 5sup>thsup>li> li>French: 5sup>èmesup>li> ul> 

Result

Technical summary

Content categories	Flow content, phrasing content, palpable content.
Permitted content	Phrasing content.
Tag omission	None, both the starting and ending tag are mandatory.
Permitted parents	Any element that accepts phrasing content.
Implicit ARIA role	No corresponding role
Permitted ARIA roles	Any
DOM interface	HTMLElement

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• The HTML element that produces subscripts. Note that you cannot use sub and sup at the same time: you need to use MathML to produce both a superscript and a subscript next to the chemical symbol of an element, representing its atomic number and its nuclear number.
• The , , and MathML elements.
• The CSS vertical-align property.

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Superscript in HTML

The tag in HTML is used to define a text as a superscript in HTML. A superscript is a text that appears half above the normal baseline and is rendered in smaller-sized text.

Example: 2 3 , 5 th , etc.

Syntax

To use the ^{tag, we just have to write the text in between the opening and closing tag like text}

Now, this will be rendered as:

Attributes (Global+Event)

There are no specific attributes applied to the tag, and Only global attributes are applied to the tag.

Note: The superscript in HTML, the tag, is used to comply with the typographical conventions/standards. It is generally used to display ordinal numbers, exponents, and superior lettering, and the tag is found inside the tag.

How to use tag in HTML??

The tag is used in HTML to show a text as a superscript, which appears half above the baseline and is rendered using a smaller text.

Example: a 2 , 9 th

Note: The tag should only be used to change the position of the text so that it complies with the typographical conventions/standards and should not be used solely for the presentation/appearance purpose.

Example: If we need to style the wordmark of a product that uses text with a raised baseline, it should be done using CSS and not using the tag. This can be done using vertical-align:super or vertical-align: 50% .

The appropriate uses of the tag (but not limited to) are discussed below:

• Showing Exponent`, such as a 2 .
• Showing superior lettering. Earlier in English-speaking countries, abbreviations were used for the recordkeeping of a given name.
  Example: for Alexander, the abbreviation Alex r was used in record-keeping.
• Showing Ordinal numbers, such as Ninth as 9 th

Examples

Example 1: Exponents

The most common use of superscript in HTML is to display the exponent or power of a number.
Example:

The formula of Pythagoras theorem is a 2 + b 2 = c 2

Example 2: Superior Lettering

The tag is used for superior lettering in HTML. Earlier in English-speaking countries, abbreviations were used for the recordkeeping of a name.

We can write Alexander as Alex r for record-keeping

Example 3: Ordinal Numbers

Superscript in HTML is used to display ordinal numbers. This can be represented using language-specific text and numerals displayed as superscripts.

Class fifth can be also written as 5 th

Set Style of Superscript with CSS

We can style superscripts in HTML using CSS in two ways:

Accessibility Concerns

There are some accessibility concerns related to superscripts in HTML that we should keep in mind while using the tag.

As there is no other way to represent power(exponent) in Html, we have to use the ^{tag. The tag means superscript and not exponent, so when we are using the screen reader, the HTML text 23, here we cannot expect the browser to read it as “two superscript three” or “two to the power three”, if the browser does it like this then the text in Superior lettering will sound very odd.}

We can also use a Unicode equivalent code to display the numbers in the exponent instead of using superscript.

Browser Support

The list of browsers that support the tag is listed below:

Conclusion

• The ^{tag is used to display a text as superscript in HTML.}
• We can use superscript in HTML to display a 2 by writing a² in HTML.
• The common use of superscripts in HTML is to display Exponents, Superior lettering, and Ordinal number.

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