diff --git a/web/src/less/memo.less b/web/src/less/memo.less
index 865b9c7b..e0086480 100644
--- a/web/src/less/memo.less
+++ b/web/src/less/memo.less
@@ -15,8 +15,9 @@
     @apply absolute top-0 right-0 z-1;
 
     &::after {
-      @apply rounded-tr-md absolute border-8 top-0 right-0 border-transparent border-t-green-600 border-r-green-600;
+      @apply rounded-tr-md absolute top-0 right-0 border-transparent border-t-green-600 border-r-green-600;
       content: "";
+      border-width: 6px;
     }
   }