How to Dynamically Modify CSS Width Property of :before Selector Using jQuery?

Dynamically Modifying CSS Width Property of :before Selector Using jQuery

While it's not possible to directly modify the width property of :before CSS selectors using jQuery, a workaround exists. By dynamically adding a new style element to the document's head, you can achieve the desired effect. Here's how it's done:

$('head').append('<style>.column:before{width:800px !important;}</style>');

This code appends a new style element to the head of the document. The CSS rules within this element target only the :before selector within the .column class, setting the width property to 800px and overriding any existing width settings.

Example and Demo

Consider the following CSS rules:

.column:before {
    width: 300px;
    float: left;
    content: "";
    height: 430px;
}

.column {
    width: 500px;
    float: right;
    padding: 5px;
    overflow: hidden;
    text-align: justify;
}

To dynamically modify the width property of :before for .column class elements, add the following JavaScript code:

$(function() {
    $('head').append('<style>.column:before{width:800px !important;}</style>');
});

This will ensure that only the :before selectors within .column elements have their width modified. A live demo of this solution is available [here](DEMO_URL).

Alternative Plugins

While the above method is a straightforward solution, you can also explore external plugins that provide direct access to pseudoclass rules. However, researching and testing such plugins is recommended before using them in a live environment.

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