diff --git a/www/assets/css/main.css b/www/assets/css/main.css
index 2833e06..0a5239d 100644
--- a/www/assets/css/main.css
+++ b/www/assets/css/main.css
@@ -1471,6 +1471,20 @@ h3 {
   font-size: 1.2em;
   letter-spacing: -0.025em; }
 
+h4 {
+  line-height: 0.5em;
+  letter-spacing: -0.025em; }
+
+h5 {
+  font-size: 0.75em;
+  line-height: 0.5em;
+  letter-spacing: -0.025em; }
+
+h6 {
+  font-size: 0.5em;
+  line-height: 0.5em;
+  letter-spacing: -0.025em; }
+
 sub {
   font-size: 0.8em;
   position: relative;