diff --git a/src/css/manual.css b/src/css/manual.css
new file mode 100644
index 0000000000..4e992f9016
--- /dev/null
+++ b/src/css/manual.css
@@ -0,0 +1,26 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+@layer base {
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6 {
+        @apply mt-6 w-fit font-black;
+    }
+    h1 {
+        @apply text-4xl;
+    }
+    h2 {
+        @apply text-3xl;
+    }
+    h3 {
+        @apply text-2xl;
+    }
+    h4 {
+        @apply text-xl;
+    }
+}
diff --git a/src/layouts/manual.astro b/src/layouts/manual.astro
index 9db445cbdb..d49b7e9eae 100644
--- a/src/layouts/manual.astro
+++ b/src/layouts/manual.astro
@@ -4,6 +4,8 @@ const { title } = Astro.props.frontmatter || Astro.props;
 import Base from "@layouts/base.astro";
 import Nav from "@components/nav.astro";
 import Toc from "@components/toc.astro";
+
+import "@css/manual.css";
 ---
 
 <Base title={title}>