How Can I Select and Manipulate CSS Pseudo-elements with JavaScript and jQuery?

Selecting and Manipulating CSS Pseudo-Elements Using JavaScript and JQuery

Selecting and manipulating CSS pseudo-elements such as ::before and ::after is a common task in web development. Here's how to achieve this using JavaScript or JQuery:

Vanilla JavaScript

For ::before and ::after pseudo-elements, jQuery provides some methods that can be used to select and manipulate them. Take a look at the following examples:

• To select a pseudo-element: Use the .prop() method to access the pseudo-element's property, then use the .css() method to set or retrieve its CSS styles.

$('span').prop('style').css('font-size', '20px');

• To add a new pseudo-element: Use the .prepend() or .append() method to add a new pseudo-element before or after the selected element.

$('span').prepend('<span>

JQuery

JQuery provides a set of methods specifically designed to manipulate CSS pseudo-elements. Here are some examples:

• To select a pseudo-element: Use the .before() or .after() method to select the pseudo-element.

$('span').before('::before { content: "Hello"; }');

• To add a new pseudo-element: Use the .append() or .prepend() method to add a new pseudo-element before or after the selected element.

$('span').append('::after { content: "World"; }');

• To manipulate a pseudo-element's style: Use the .css() method to set or retrieve the pseudo-element's CSS styles.

$('span').before('::before').css('font-size', '20px');

These methods offer a convenient way to manipulate CSS pseudo-elements using JavaScript and JQuery, enhancing the flexibility and interactivity of your web applications.

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