diff --git a/routes/css.cpp b/routes/css.cpp
index 35acfd8..be496af 100644
--- a/routes/css.cpp
+++ b/routes/css.cpp
@@ -41,6 +41,7 @@ details[open] {
 }
 summary:hover {
     text-decoration: underline;
+    cursor: pointer;
 }
 
 html {