JQuery: parent selector definition and usage

: Parent selector definition and usage:

This selector matches an element that contains child elements or text.
Note: spaces are also contained elements.

Syntax structure:

$ (": Parent ")

This selector should also be used with other selectors, such as class selector and element selector. For example:

$ ("Div: parent"). animate ({width: "300px "})

The code above can set the div width containing text or elements to PX.
If it is not used with other selectors, the default state is used with the * selector. For example, $ (": parent") is equivalent to $ ("*: parent ").

Instance code:

Instance 1:

<! DOCTYPE html> 
The code above allows you to set the width of a div containing text or elements to 300 in a custom animation.
Example 2:

<! DOCTYPE html> 
Because the preceding Code does not specify the selector used in combination with the parent selector, it is used with the * selector by default, therefore, the code can set the width of elements containing text and elements to PX in a Custom Animation Mode.