안녕하세요 css 서버사이드랜더링이안되있어서 질문드립니다.

_document.js

에 적은 코드들인데 이파일에서 css 서버사이드 랜더링하는게 아닌가요?

import React from "react";
import Document, { Html, Head, Main, NextScript } from "next/document";
import { ServerStyleSheet } from "styled-components";

export default class MyDocument extends Document {
static async getInitialProps(ctx) {
const sheet = new ServerStyleSheet();
const originalRenderPage = ctx.renderPage;

try {
ctx.renderPage = () =>
originalRenderPage({
enhanceApp: (App) => (props) =>
sheet.collectStyles(<App {...props} />),
});

const initialProps = await Document.getInitialProps(ctx);
return {
...initialProps,
styles: (
<>
{initialProps.styles}
{sheet.getStyleElement()}
</>
),
};
} finally {
sheet.seal();
}
}

render() {
return (
<Html>
<Head />
<body>
<Main />
<script src="https://polyfill.io/v3/polyfill.min.js?features=es6,es7,es8,es9,NodeList.prototype.forEach&flags=gated" />
<NextScript />
</body>
</Html>
);
}
}

인프런 커뮤니티 질문&답변