Warning: Extra attributes from the server: class,style

이런 오류가 생기면

suppressHydrationWarning 을 추가하면 된다

/app/layout.tsx

export default function RootLayout({ children }: RootLayoutProps) {
  return (
    <html lang="ko" suppressHydrationWarning>
      <body>{children}</body>
    </html>
  );
}