diff --git a/app/scss/main.scss b/app/scss/main.scss
index 54bc577..613266e 100644
--- a/app/scss/main.scss
+++ b/app/scss/main.scss
@@ -104,6 +104,11 @@ header {
   .counter {
     color: $muted-color;
   }
+  .summary {
+    a:hover {
+      text-decoration: underline;
+    }
+  }
 }
 a {
   color: $primary-color;