No styled-jsx in _document
Source URL: https://nextjs.org/docs/messages/no-styled-jsx-in-document
No styled-jsx in _document
Section titled “No styled-jsx in _document”Prevent usage of
styled-jsxinpages/_document.js.
Why This Error Occurred
Section titled “Why This Error Occurred”Custom CSS like styled-jsx is not allowed in a Custom Document.
Possible Ways to Fix It
Section titled “Possible Ways to Fix It”If you need shared CSS for all of your pages, take a look at the Custom App file or define a custom layout.
For example, consider the following stylesheet named styles.css:
body { font-family: 'SF Pro Text', 'SF Pro Icons', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif; padding: 20px 20px 60px; max-width: 680px; margin: 0 auto;}Create a pages/_app.{js,tsx} file if not already present. Then, import the styles.css file.
import '../styles.css'
// This default export is required in a new `pages/_app.js` file.export default function MyApp({ Component, pageProps }) { return <Component {...pageProps} />}These styles (styles.css) will apply to all pages and components in your application.