What is a theme in WordPress?

A WordPress theme is a collection of templates and stylesheets that define the design of a website. Learn more about how themes work and how to customize them here.

What is a theme in WordPress?

A theme in WordPress is a collection of templates and stylesheets that define the look and layout of a WordPress website. Themes allow website owners to quickly change the design without affecting the content or structure of the website, and are thus an essential part of the WordPress content management system.

How WordPress themes work

A WordPress theme usually consists of a set of PHP files, style sheets (CSS) and JavaScript files, as well as images and other resources. These files work together to provide the various layouts and styles for the website. The predefined templates control how content is presented and organized on the website, while the stylesheets control the look and feel of the website.

A WordPress theme is separate from the website content, so users can change the theme at any time without affecting or losing the content.

Theme selection and customization

WordPress offers thousands of free and premium themes that users can download on the official WordPress theme library or through independent sellers. The themes can be tailored to different niches and needs, both for business and personal purposes. Some themes offer multiple layout options (e.g. different number of columns) and widgets that users can place on the page to add additional features.

Many WordPress themes allow for customization via the Customizer, a user-friendly interface built into WordPress that lets users make changes to colors, fonts, layout, and other design elements without having to dig directly into the program code.

Child themes in WordPress

For advanced customization, child themes provide a way to make changes to an existing theme without editing its files directly. This facilitates future updates of the main theme and ensures a clean and easy-to-maintain code base.


A theme in WordPress is crucial for the design of the website and offers numerous options to achieve the desired look and functions of a website. By separating content from design, WordPress allows for easy and flexible customization of a website's appearance.

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