diff --git a/style/base.css b/style/base.css
index fd2d5cd..1c86c0e 100644
--- a/style/base.css
+++ b/style/base.css
@@ -147,10 +147,11 @@ h2 { margin-top: 0; }
 
 h3 {
   text-align: center;
-  margin-top: 0;
   margin-bottom: 0.25em;
 }
 
+h2 + section h3 { margin-top: 0; }
+
 strong { font-weight: 700; }
 
 #cube section ::selection {