Emotion

Emotion is a powerful CSS-in-JS library designed for styling React and other JavaScript applications with composable and dynamic styling capabilities. It allows developers to write CSS styles directly in JavaScript using tagged template literals or object syntax, providing full access to JavaScript's power for styling logic. Emotion offers both a framework-agnostic core and React-specific bindings with features like the css prop for inline styling. The library supports server-side rendering, automatic vendor prefixing, and optimized runtime performance through style extraction and minification. It provides excellent developer experience with source maps, readable class names in development, and TypeScript support. Emotion is widely used in modern React applications and design systems due to its flexibility and performance characteristics. The library has become a popular alternative to styled-components and traditional CSS methodologies.