diff --git a/apps/site/pages/ja/index.mdx b/apps/site/pages/ja/index.mdx
index ba34b86b0c6c4..b332eb3fc6059 100644
--- a/apps/site/pages/ja/index.mdx
+++ b/apps/site/pages/ja/index.mdx
@@ -9,8 +9,7 @@ layout: home
 <div>
   <h1 className="special">Run JavaScript Everywhere</h1>
 
-Node.js®は自由かつオープンソースでクロスプラットフォームに対応したJavaScript実行環境です。開発者にサーバー、ウェブアプリ、コマンドラインツール、スクリプトの開発環境を提供します。
-
+  Node.js®は自由かつオープンソースでクロスプラットフォームに対応したJavaScript実行環境です。開発者にサーバー、ウェブアプリ、コマンドラインツール、スクリプトの開発環境を提供します。
 </div>
 
 <div>
@@ -45,93 +44,87 @@ Node.js®は自由かつオープンソースでクロスプラットフォー
   // server.mjs
   import { createServer } from 'node:http';
 
-const server = createServer((req, res) => {
-res.writeHead(200, { 'Content-Type': 'text/plain' });
-res.end('Hello World!\n');
-});
-
-// starts a simple http server locally on port 3000
-server.listen(3000, '127.0.0.1', () => {
-console.log('Listening on 127.0.0.1:3000');
-});
-
-// run with `node server.mjs`
-
-````
-
-```js displayName="Write Tests"
-// tests.mjs
-import assert from 'node:assert';
-import test from 'node:test';
-
-test('that 1 is equal 1', () => {
-  assert.strictEqual(1, 1);
-});
-
-test('that throws as 1 is not equal 2', () => {
-  // throws an exception because 1 != 2
-  assert.strictEqual(1, 2);
-});
-
-// run with `node tests.mjs`
-````
-
-```js displayName="Read and Hash a File"
-// crypto.mjs
-import { createHash } from 'node:crypto';
-import { readFile } from 'node:fs/promises';
-
-const hasher = createHash('sha1');
-
-hasher.setEncoding('hex');
-// ensure you have a `package.json` file for this test!
-hasher.write(await readFile('package.json'));
-hasher.end();
-
-const fileHash = hasher.read();
-
-// run with `node crypto.mjs`
-```
-
-```js displayName="Streams Pipeline"
-// streams.mjs
-import { pipeline } from 'node:stream/promises';
-import { createReadStream, createWriteStream } from 'node:fs';
-import { createGzip } from 'node:zlib';
-
-// ensure you have a `package.json` file for this test!
-await pipeline(
-  createReadStream('package.json'),
-  createGzip(),
-  createWriteStream('package.json.gz')
-);
-
-// run with `node streams.mjs`
-```
-
-```js displayName="Work with Threads"
-// threads.mjs
-import {
-  Worker,
-  isMainThread,
-  workerData,
-  parentPort,
-} from 'node:worker_threads';
-
-if (isMainThread) {
-  const data = 'some data';
-  const worker = new Worker(import.meta.filename, { workerData: data });
-  worker.on('message', msg => console.log('Reply from Thread:', msg));
-} else {
-  const source = workerData;
-  parentPort.postMessage(btoa(source.toUpperCase()));
-}
-
-// run with `node threads.mjs`
-```
-
+  const server = createServer((req, res) => {
+    res.writeHead(200, { 'Content-Type': 'text/plain' });
+    res.end('Hello World!\n');
+  });
+
+  // starts a simple http server locally on port 3000
+  server.listen(3000, '127.0.0.1', () => {
+    console.log('Listening on 127.0.0.1:3000');
+  });
+
+  // run with `node server.mjs`
+  ```
+
+  ```js displayName="Write Tests"
+  // tests.mjs
+  import assert from 'node:assert';
+  import test from 'node:test';
+
+  test('that 1 is equal 1', () => {
+    assert.strictEqual(1, 1);
+  });
+
+  test('that throws as 1 is not equal 2', () => {
+    // throws an exception because 1 != 2
+    assert.strictEqual(1, 2);
+  });
+
+  // run with `node tests.mjs`
+  ```
+
+  ```js displayName="Read and Hash a File"
+  // crypto.mjs
+  import { createHash } from 'node:crypto';
+  import { readFile } from 'node:fs/promises';
+
+  const hasher = createHash('sha1');
+
+  hasher.setEncoding('hex');
+  // ensure you have a `package.json` file for this test!
+  hasher.write(await readFile('package.json'));
+  hasher.end();
+
+  const fileHash = hasher.read();
+
+  // run with `node crypto.mjs`
+  ```
+
+  ```js displayName="Streams Pipeline"
+  // streams.mjs
+  import { pipeline } from 'node:stream/promises';
+  import { createReadStream, createWriteStream } from 'node:fs';
+  import { createGzip } from 'node:zlib';
+
+  // ensure you have a `package.json` file for this test!
+  await pipeline
+  (
+    createReadStream('package.json'),
+    createGzip(),
+    createWriteStream('package.json.gz')
+  );
+
+  // run with `node streams.mjs`
+  ```
+
+  ```js displayName="Work with Threads"
+  // threads.mjs
+  import { Worker, isMainThread,
+    workerData, parentPort } from 'node:worker_threads';
+
+  if (isMainThread) {
+    const data = 'some data';
+    const worker = new Worker(import.meta.filename, { workerData: data });
+    worker.on('message', msg => console.log('Reply from Thread:', msg));
+  } else {
+    const source = workerData;
+    parentPort.postMessage(btoa(source.toUpperCase()));
+  }
+
+  // run with `node threads.mjs`
+  ```
 </div>
 
 私たちの[学習教材](/learn)でNode.jsでできることをさらに学んでみましょう。
-
 </section>