diff --git a/custom/build-run.sh b/custom/build-run.sh
index 083eaf2..6a74ddc 100644
--- a/custom/build-run.sh
+++ b/custom/build-run.sh
@@ -1,2 +1,2 @@
 docker build -t quartz-jpg .
-cd custom && docker-compose up -d --force-recreate
\ No newline at end of file
+cd custom && docker-compose up -d --force-recreate
diff --git a/quartz.config.ts b/quartz.config.ts
index 24f4553..829fc49 100644
--- a/quartz.config.ts
+++ b/quartz.config.ts
@@ -8,7 +8,7 @@ import * as Plugin from "./quartz/plugins"
  */
 const config: QuartzConfig = {
   configuration: {
-    pageTitle: "[JPG]",
+    pageTitle: "Japanese",
     enableSPA: true,
     enablePopovers: true,
     analytics: {
@@ -66,7 +66,9 @@ const config: QuartzConfig = {
       }),
       Plugin.ObsidianFlavoredMarkdown({ enableInHtmlEmbed: true, enableYouTubeEmbed: true }),
       Plugin.GitHubFlavoredMarkdown(),
-      Plugin.TableOfContents(),
+      Plugin.TableOfContents({
+        maxDepth: 4,
+      }),
       Plugin.CrawlLinks({ markdownLinkResolution: "shortest" }),
       Plugin.Description(),
     ],
diff --git a/quartz/styles/custom.scss b/quartz/styles/custom.scss
index 0976ba1..6dde2b3 100644
--- a/quartz/styles/custom.scss
+++ b/quartz/styles/custom.scss
@@ -88,6 +88,10 @@ ul.overflow::after, ol.overflow::after {
                 font-size: 1.15rem;
             }
 
+            & h4 {
+                font-size: 1.3rem;
+            }
+
             & h3 {
                 font-size: 1.5rem;
             }
@@ -143,7 +147,7 @@ footer {
     margin-top: 0.5rem;
 }
 
-.usage .p {
+.usage p {
     margin:0;
 }
 
@@ -170,4 +174,9 @@ footer {
 
 .usage .right {
     padding-left: 1rem;
+}
+
+.usage .r {
+    margin-left: 0.25rem;
+    margin-right: 0.25rem;
 }
\ No newline at end of file