Optimizing Performance by Loading Critical CSS in Next.js

Would it be possible to split critical CSS from non-critical in Next.js and load the non-critical asynchronously on each page?

I have styled-components implemented in my pages and components along with a few external CSS libraries.

Any suggestions or tips would be greatly appreciated. Thank you!

Answer №1

To clarify, you have the option to utilize module CSS within your project, however global styles are restricted to the _app.js file. You can effortlessly import "module" CSS, which is an inherent feature. Is this the solution you were seeking?

// In the Foo.js component, external third-party styling is required

import '@thirdparty/dist/styles.css'

// In the Foo.js component, module CSS specific to your project is imported

import styles from "./Foo.module.css";

If this doesn't align with your needs, please provide more information on what exactly you're looking for.

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