HTML <sub> Tag.

Example

Subscript text :

<p>This text contains <sub>subscript</sub> text.</p> 
Execute Code

Definition and Usage

The <sub> tag 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.

Tip : Use the <sup> tag to define superscripted text.


Browser Support

Element Chrome Internet Explorer Firefox Safari Opera
<sub> Yes Yes Yes Yes Yes

Differences Between HTML 4.01 and HTML5

None.


Default CSS Settings

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

Example

sub 
{
    vertical-align: sub;
    font-size: smaller;
}