Adding CSS and JavaScript to WordPress: A Step-by-Step Guide

As WordPress evolves, webmasters are utilizing its capabilities to build powerful, interactive websites. To make the most of WordPress, webmasters need to incorporate CSS and JavaScript into their sites. In this article, we’ll provide an overview of both languages, then discuss the different strategies you can use to add them to your WordPress site. After reading, you’ll have a better understanding of the basics and be ready to make your WordPress site even better.

What is CSS and JavaScript?

CSS (Cascading Style Sheets) and JavaScript are two of the most popular web development languages utilized to create interactive webpages. CSS is a style sheet language used to control the presentation of webpages. It’s used to define the layout, fonts, colors, and other design elements for a website.

JavaScript is a scripting language used to create dynamic or interactive webpages. This language is used to add interactivity to a website, such as responding to user input and allowing the user to interact with the page.

Adding CSS and JavaScript to WordPress

Now that you have a basic understanding of CSS and JavaScript, let’s look at the different ways you can add them to your WordPress site.

1. Using Plugins

The most straightforward approach to adding CSS and JavaScript to your WordPress site is to use a plugin. There are several plugins available that allow you to quickly add custom CSS and JavaScript to your site. For instance, the Simple Custom CSS and JS plugin permits you to add custom CSS and JavaScript code directly to your WordPress site.

2. Editing Themes and Plugins

If you’re comfortable editing your WordPress theme and plugins, you can add CSS and JavaScript directly to the code. This is an advanced method and is not recommended for beginners.

3. Enqueueing Scripts and Styles

If you’re comfortable with coding, you can enqueue scripts and stylesheets on your WordPress site. This is done by adding code to the functions.php file of your theme. This is a powerful method, as it allows you to control when the scripts and stylesheets are loaded and guarantees they are loaded in the right order.


Adding CSS and JavaScript to your WordPress site is an important step in taking your site to the next level. By using plugins, editing your theme and plugins, or enqueueing scripts and styles, you can add custom CSS and JavaScript to your WordPress site. With the knowledge gained from this article, you’re ready to add CSS and JavaScript to your WordPress site and make it even more interactive and engaging.