Add node sass.

package.json

 {
-  "name": "nextjs-preact-demo",
+  "name": "tmci-website",
   "version": "1.0.0",
   "scripts": {
     "dev": "next",
@@ -8,13 +8,13 @@
   },
   "dependencies": {
     "next": "^9.3.1",
+    "node-sass": "^4.14.0",
     "preact": "^10.3.4",
     "preact-render-to-string": "^5.1.4",
     "react": "github:preact-compat/react#1.0.0",
     "react-dom": "github:preact-compat/react-dom#1.0.0",
     "react-ssr-prepass": "npm:preact-ssr-prepass@^1.0.1"
   },
-  "license": "UNLICENSE",
   "devDependencies": {
     "@types/node": "^13.13.4",
     "@types/react": "^16.9.34",

pages/index.tsx

 import React from 'react'
 import Link from 'next/link'
 
+import styles from './test.module.scss';
+
 export default () => {
     return (
         <main>
-            <h1>Hello from Preact + Typescript</h1>
+            <h1 className={styles.header}>Hello from Preact + Typescript</h1>
 
             <Link href="/about">
                 <a>About</a>

pages/test.module.scss

+.header {
+    font-size: 3em;
+}