diff --git a/docs/_sass/custom/custom.scss b/docs/_sass/custom/custom.scss
index 0b3d5158..a935adc2 100644
--- a/docs/_sass/custom/custom.scss
+++ b/docs/_sass/custom/custom.scss
@@ -25,3 +25,8 @@
     }
   }
 }
+
+h3 > code {
+  // fix font size of code block in heading
+  font-size: 1.0rem;
+}