diff --git a/static/css/main.css b/static/css/main.css
index 0c2f465..49d680d 100644
--- a/static/css/main.css
+++ b/static/css/main.css
@@ -124,6 +124,14 @@ h3 {
     font-size: 1.5rem;
 }
 
+h4 {
+    --recursive-slnt: 0.0;
+    --recursive-casl: 0.5;
+    --recursive-wght: 700;
+
+    font-size: 1rem;
+}
+
 pre,
 code {
     --recursive-mono: 1.0;
@@ -150,7 +158,10 @@ pre {
 
 h1,
 h2,
-h3 {
+h3,
+h4,
+h5,
+h6 {
     margin: 4px 0;
 }