March 18, 2026
CSS custom property variables allow developers to store and reuse values like colors, fonts, spacing, and sizes throughout a stylesheet. By using the --variable-name syntax and the var() function, it’s possible to create consistent, maintainable, and themeable designs with pure CSS. Custom properties are widely used for building dark/light mode themes, responsive layouts, and scalable UI components. Explore a collection of creative CSS custom property examples that demonstrate how variables can simplify styling and improve workflow in modern web development.