Next.js: A Practical Introduction for Developers

Component-Level Styling with Styled Components and Emotion

Section 3

Styling and Components: Building User Interfaces

Next.js: A Practical Introduction for DevelopersStyling and Components: Building User Interfaces

In modern web development, especially with frameworks like Next.js, managing styles effectively is crucial for building maintainable and scalable user interfaces. While global CSS files have their place, component-level styling offers significant advantages by encapsulating styles directly with the components they affect. This approach promotes reusability, reduces the risk of style conflicts, and makes it easier to reason about your UI code.

Two of the most popular and powerful libraries for component-level styling in the JavaScript ecosystem are Styled Components and Emotion. Both are CSS-in-JS libraries that allow you to write actual CSS code within your JavaScript or TypeScript files. This enables dynamic styling, theming, and a more integrated development experience. Let's explore how they work and how you can leverage them in your Next.js projects.

Styled Components is a popular choice that allows you to create React components with attached styles. It uses tagged template literals to define your CSS, making it feel very natural if you're familiar with standard CSS. The core idea is to create special styled components that render regular HTML elements but come with their own unique styles.

To get started with Styled Components in Next.js, you'll need to install it. You might also want to install babel-plugin-styled-components for server-side rendering (SSR) support, which Next.js leverages effectively.

npm install styled-components babel-plugin-styled-components
# or
yarn add styled-components babel-plugin-styled-components

After installation, you'll need to configure Babel. Add the plugin to your next.config.js file:

module.exports = {
  // ... other Next.js config
  experimental: {
    styledComponents: true,
  },
};
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