CSS icons are created and styled using Cascading Style Sheets

They are often used in web design to add decorative or functional icons to a website without the need for image files.

CSS icons have several advantages, including scalability, easy customization, and reduced page load times.

Icon libraries in CSS:

Bootstrap icons
Font Awesome icons
Google icons

Font Awesome icons

Font Awesome is one of the most well-known and widely used icon libraries.

It provides a collection of scalable vector icons that can be easily customized and styled using CSS classes. Icons are available in both free and paid versions.