diff --git a/execution.html b/execution.html
index 7719db7..e2d8cc6 100644
--- a/execution.html
+++ b/execution.html
@@ -1705,6 +1705,10 @@
   margin-block: 0;
   line-height: 0;
 }
+
+dfn {
+  font-weight: normal;
+}
 </style>
 <style>/* Boilerplate: style-autolinks */
 .css.css, .property.property, .descriptor.descriptor {