import Document, { Head, Html, Main, NextScript } from 'next/document' class MyDocument extends Document { render() { return ( <Html> <Head> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/photo-sphere-viewer@4/dist/photo-sphere-viewer.min.css" /> </Head> <body className="loading"> <Main /> <NextScript /> </body> </Html> ) } } export default MyDocument