HTML contains several elements for defining text with a special meaning.
This is subscript and superscript
Formatting elements were designed to display special types of text:
<b> - Bold text
<storge> - Important text
<i> - Italic text
<em> - Emphasized text
<mark> - Marked text
<small> - Smaller text
<del> - Deleted text
<ins> - Inserted text
<sub> - Subscript text
<sup> - Superscript text
The HTML <b> element defines bold text, without any extra importance.
<b> This text is bold </b>
The HTML <storge> element defines text with strong importance. The content inside is typically displayed in bold.
<storge> This text is important </storge>
The HTML <i> element defines a part of text in an alternate voice or mood. The content inside is typically displayed in italic.
Tip: The <i> tag is often used to indicate a technical term, a phrase from another language, a thought, a ship name, etc.
<i> This text is italic </i>
The HTML ><em> 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.
<em> This text is emphasized </em>
The HTML <small> element defines smaller text:
<small> This is some smaller text. </small>
The HTML <mark> element defines text that should be marked or highlighted:
<p> Do not forget to buy <mark>milk</mark> </p>
The HTML <del> element defines text that has been deleted from a document. Browsers will usually strike a line through deleted text:
<p> My favorite color is <del>red</del> blue </p>
The HTML <ins> element defines a text that has been inserted into a document. Browsers will usually underline inserted text:
<p> My favorite color is <del> blue </del> </ins> red </ins> </p>
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 chemical formulas, like H2O:
<p> This is <sub> subscripted </sub> text. </p>
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]:
<p> This is <sup> superscripted </sup> text. </p>