Emotion is a performant and flexible CSS-in-JS library that allows you to style applications quickly and efficiently with JavaScript. It provides powerful and flexible tools for writing CSS styles with JavaScript, including support for styled components, CSS prop, and keyframes for animations.
Styled Components
Styled components allow you to create React components with styles attached to them. This makes it easy to manage styles in a modular and reusable way.
const Button = styled.button`
color: hotpink;
`;
<Button>Click me</Button>CSS Prop
The CSS prop allows you to style elements using a prop directly in your JSX. This is useful for applying styles conditionally or dynamically.
<div css={{ color: 'hotpink' }}>Hello World</div>Keyframes for Animations
Emotion provides support for keyframes, allowing you to define animations in your JavaScript code. This makes it easy to create complex animations and apply them to your components.
import { keyframes } from '@emotion/react';
const bounce = keyframes`
from, 20%, 53%, 80%, to {
transform: translate3d(0,0,0);
}
40%, 43% {
transform: translate3d(0, -30px, 0);
}
70% {
transform: translate3d(0, -15px, 0);
}
90% {
transform: translate3d(0,-4px,0);
}
`;
const BouncingDiv = styled.div`
animation: ${bounce} 1s ease infinite;
`;
<BouncingDiv>Bounce!</BouncingDiv>Styled-components is another popular CSS-in-JS library that allows you to write plain CSS in your JavaScript. It offers a similar API to Emotion's styled components and is widely used in the React community.
Aphrodite is a CSS-in-JS library developed by Khan Academy. It focuses on performance and provides a straightforward API for defining styles in JavaScript. It is less feature-rich compared to Emotion but is known for its simplicity and performance.
JSS is a library for generating CSS from JavaScript. It provides a powerful and flexible API for defining styles and supports various plugins for additional functionality. JSS is highly customizable and can be used with various frameworks, not just React.
The Next Generation of CSS-in-JS
Emotion is a performant and flexible CSS-in-JS library. Building on many other CSS-in-JS libraries, it allows you to style apps quickly with string or object styles. It has predictable composition to avoid specificity issues with CSS. With source maps and labels, Emotion has a great developer experience and great performance with heavy caching in production.
Frequently viewed docs:
Get up and running with a single import.
npm install --save emotion
import { css } from 'emotion'
const app = document.getElementById('root')
const myStyle = css`
color: rebeccapurple;
`
app.classList.add(myStyle)
npm install --save emotion react-emotion babel-plugin-emotion
Note: use preact-emotion in place of react-emotion if using Preact
import styled, { css } from 'react-emotion'
const Container = styled('div')`
background: #333;
`
const myStyle = css`
color: rebeccapurple;
`
const app = () => (
<Container>
<p className={myStyle}>Hello World</p>
</Container>
)
The babel plugin is not required, but enables some optimizations and customizations that could be beneficial for your project.
Look here 👉 emotion babel plugin feature table and documentation
This project exists thanks to all the people who contribute. [Contribute].
Thank you to all our backers! 🙏 [Become a backer]
Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]
FAQs
The Next Generation of CSS-in-JS.
The npm package emotion receives a total of 345,005 weekly downloads. As such, emotion popularity was classified as popular.
We found that emotion demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 5 open source maintainers collaborating on the project.
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