How To Replace Css In Jquery

Are you tired of manually editing your CSS to make small style changes? Or, do you want to quickly test different styles without having to go through the hassle of CSS files? jQuery is an excellent tool for manipulating the styles of HTML elements directly, and in this blog post, we’ll show you how easy it is to replace CSS using jQuery.

Getting Started

First, make sure you have included the jQuery library in your HTML file:

<script src=””></script>

Now that you have the library ready to use, let’s start by selecting an element and changing a single CSS property.

Changing a Single CSS Property

To change a single CSS property, you can use the .css() method in jQuery. The syntax is simple: select the element and pass the property and value you want to change as arguments.

Here’s an example:

Let’s say we have a div with the id “box” and we want to change its background color to blue:

<div id=”box”>I’m a simple box</div>

We would use the following jQuery code:

    $(document).ready(function() {
        $("#box").css("background-color", "blue");

After running this code, the background color of the div with id=”box” will be changed to blue.

Changing Multiple CSS Properties

If you want to change multiple CSS properties at once, you can pass an object to the .css() method containing the properties and their corresponding values.

Here’s an example:

Let’s say we want to change the background color to blue, the font color to white, and the font size to 20px for the div with id=”box”:

    $(document).ready(function() {
            "background-color": "blue",
            "color": "white",
            "font-size": "20px"

After running this code, the background color, font color, and font size for the div with id=”box” will be changed as specified.


As you can see, replacing CSS in jQuery is a simple and effective way to manipulate the styles of your HTML elements. jQuery’s .css() method allows you to change single or multiple CSS properties with ease, making it a valuable tool for web developers and designers alike. Give it a try and see how it can improve your web development workflow!