diff --git a/simple.css b/simple.css
index bff5fe3..d8dc097 100644
--- a/simple.css
+++ b/simple.css
@@ -341,7 +341,9 @@ article, fieldset, dialog {
 }
 
 article h2:first-child,
-section h2:first-child {
+section h2:first-child,
+article h3:first-child,
+section h3:first-child {
   margin-top: 1rem;
 }