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Tutorial Reference

HTML Text Formatting

Learn how to use HTML text formatting elements like <b>, <i>, <em>, <strong>, <sub>, <sup>, and more for bold, italic, subscript, superscript, and semantic styling.

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

Example

<!DOCTYPE html>
<html>
	<body>
		<p><b>This text is bold</b></p>
		<p><i>This text is italic</i></p>
		<p>This is<sub> subscript</sub> and <sup>superscript</sup></p>
		</body>
</html>

Output:

First example

HTML Formatting Elements

Formatting elements were designed to display special types of text:

Tag Description
<b> Defines bold text
<em> Defines emphasized text
<i> Defines a part of text in an alternate voice or mood
<small> Defines smaller text
<strong> Defines important text
<sub> Defines subscripted text
<sup> Defines superscripted text
<ins> Defines inserted text
<del> Defines deleted text
<mark> Defines marked/highlighted text

<b> HTML element

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

<!DOCTYPE html>
<html>
	<body>
		<p>This text is normal.</p>
		<p><b>This text is bold.</b></p>
	</body>
</html>

Output:

Bold example

<strong> HTML element

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

<!DOCTYPE html>
<html>
	<body>
		<p>This text is normal.</p>
		<p><strong>This text is important!</strong></p>
	</body>
</html>

Output:

Strong example

<i> HTML element

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

<!DOCTYPE html>
<html>
	<body>
		<p>This text is normal.</p>
		<p><i>This text is italic.</i></p>
	</body>
</html>

Output:

Strong example

<em> HTML element

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

<!DOCTYPE html>
<html>
	<body>
		<p>This text is normal.</p>
		<p><em>This text is emphasized.</em></p>
	</body>
</html>

Output:

Strong example

<small> HTML element

The HTML <small> element defines smaller text:

<!DOCTYPE html>
<html>
	<body>
		<p>This is some normal text.</p>
		<p><small>This is some smaller text.</small></p>
	</body>
</html>

Output:

Strong example

<mark> HTML element

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

<!DOCTYPE html>
<html>
	<body>
	<p>Do not forget to buy <mark>milk</mark> today.</p>
	</body>
</html>

Output:

Strong example

<del> HTML element

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

<!DOCTYPE html>
<html>
	<body>
		<p>My favorite color is <del>blue</del> red.</p>
	</body>
</html>

Output:

Strong example

<ins> HTML element

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

<!DOCTYPE html>
<html>
	<body>
		<p>My favorite color is <del>blue</del> <ins>red</ins>.</p>
	</body>
</html>

Output:

Strong example

<sub> HTML element

The HTML <sub> 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 maths formulas, like log2(x):

<!DOCTYPE html>
<html>
	<body>
		<p>This is <sub>subscripted</sub> text.</p>
	</body>
</html>

Output:

Strong example

<sup> HTML element

The HTML <sup> 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]:

<!DOCTYPE html>
<html>
	<body>
		<p>This is <sup>superscripted</sup> text.</p>
	</body>
</html>

Output:

Strong example

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