@primer/css is a collection of CSS utility classes and components developed by GitHub's design system Primer. It provides a set of customizable and reusable styles for building modern and responsive web interfaces. The package includes utility classes for spacing, typography, colors, layout, and more, allowing developers to quickly style their applications without writing custom CSS from scratch.
Fela is a high-performance, framework-agnostic styling library for React and other JavaScript frameworks. It follows a functional and atomic CSS approach, allowing you to create dynamic and responsive styles using JavaScript objects. Fela's unique feature is its ability to generate atomic CSS classes on the fly, resulting in smaller CSS bundles and improved performance.
Alternatives:
emotion-+
styled-components-+
jss-+
glamor-+
aphrodite-+
styletron-+
radium-+
linaria-+
goober-+
stitches-+
Tags: javascriptstylingreactatomic-cssperformance
Fight!
Popularity
Both @primer/css and Fela are popular npm packages in the CSS-in-JS ecosystem. However, @primer/css is specifically developed and maintained by GitHub's Primer CSS framework, which gives it a strong backing and popularity within the GitHub community.
Architecture
@primer/css is a CSS utility library that provides a set of pre-defined utility classes and styles for building responsive and accessible UI components. It follows a utility-first approach and is designed to work seamlessly with the Primer CSS framework. Fela, on the other hand, is a more general-purpose CSS-in-JS library that allows you to write CSS styles using JavaScript objects or functions.
Developer Experience
Both packages offer a good developer experience, but they have different approaches. @primer/css provides a set of ready-to-use utility classes and styles, making it easy to quickly style components without writing custom CSS. Fela, on the other hand, offers a more flexible and programmatic approach, allowing you to define styles using JavaScript objects or functions. This can be beneficial for complex styling scenarios or when you prefer a more dynamic and code-driven approach.
Integration
@primer/css is tightly integrated with the Primer CSS framework and is designed to be used within GitHub's ecosystem. It provides a set of utility classes and styles that align with the Primer CSS design system. Fela, on the other hand, is a standalone library that can be used with any JavaScript framework or library, giving you more flexibility in terms of integration.
Performance
In terms of performance, both @primer/css and Fela are efficient and optimized for production use. However, @primer/css is specifically optimized for the Primer CSS framework and leverages the power of utility classes, which can result in smaller CSS bundles and better runtime performance.
Community and Support
Both packages have active communities and provide good documentation. However, @primer/css benefits from being part of the larger Primer CSS framework, which has a strong community and support from GitHub. Fela also has a dedicated community and offers extensive documentation and examples.
