diff --git a/site/content/docs/5.1/examples/dropdowns/dropdowns.css b/site/content/docs/5.1/examples/dropdowns/dropdowns.css
index 2426de8b9f..556f310a9d 100644
--- a/site/content/docs/5.1/examples/dropdowns/dropdowns.css
+++ b/site/content/docs/5.1/examples/dropdowns/dropdowns.css
@@ -52,6 +52,7 @@
   background-color: rgba(0, 0, 0, .05);
 }
 .cal-btn[disabled] {
+  border: 0;
   opacity: .5;
 }