HTML <sub> tag represents a sub-scripted text within web pages.
The sub tag generally used to introduce some math or science formulas. Also see the HTML <sup> tag that is used to define super-scripted text within web pages.
HTML sub Tag Sample Code
<html> <head> <title>HTML/HTML5 sub Tag with Example</title> </head> <body> <p> This is the example of a<sub>2</sub>b<sub>5</sub> sub-scripted text. </p> </body> </html>
HTML sub Tag Sample Result
This is the example of a2b5 sub-scripted text.
Standard Attributes Support
HTML <sub> tag supports mostly all HTML Attributes. Following are some most common attributes that are used by <sub> tag. You can get more details about available HTML Attributes here.
|class||user_defined||Represents a style for an element which is used in CSS style sheet|
|id||user_defined||Represents unique id for an element|
|style||css_properties||Represents an inline style for an element for e.g style=”color:red;text-decoration:underline;”|
|title||user_defined||Represents a tooltip information for an elements like img, a, abbr etc|
Event Attributes Support
The “script” is invoked when a certain “event” occurs. Each event handler content attribute deals with a different event. HTML <sub> tag supports mostly all HTML Event Attributes. Following are some most common event attributes that are used by <sub> tag. You can get more details about available HTML Event Attributes here.
|onclick||script||Event Fires immediately when mouse click on the specified element|
|ondblclick||script||Event Fires immediately when mouse double-click on the specified element|
|onkeydown||script||Event Fires immediately when user is pressing a down key from keyboard|
|onkeypress||script||Event Fires immediately when user presses a key from keyboard|
|onkeyup||script||Event Fires immediately when user releases a key from keyboard|
|onmousedown||script||Event Fires immediately when mouse pointer gets down from an element|
|onmousemove||script||Event Fires immediately when mouse pointer moves over an element|
|onmouseout||script||Event Fires immediately when mouse pointer gets out from an element|
|onmouseover||script||Event Fires immediately when mouse pointer moves over an element|
|onmouseup||script||Event Fires immediately when a mouse pointer is released over an element|