FreeCodeCamp.com Responsive Web Design Certification Project - "Build a City Skyline" https://www.freecodecamp.org/learn/2022/responsive-web-design/learn-css-variables-by-building-a-city-skyline/step-118 CSS variables help you organize your styles and reuse them.
In this , you'll build a city skyline. You'll learn how to configure CSS variables so you can reuse them whenever you want.