diff --git a/client/src/index.css b/client/src/index.css
index 37dc8a7..92b0b30 100644
--- a/client/src/index.css
+++ b/client/src/index.css
@@ -504,6 +504,11 @@ h4 {
   color: #0f9d58;
 }
 
+.callout.neutral {
+  background: #f9fafb;
+  color: #111827;
+}
+
 .explanation {
   margin-top: 1rem;
   padding-top: 0.5rem;