diff --git a/css/duplicate-subjects.css b/css/duplicate-subjects.css
index d6c5b82..15b2718 100644
--- a/css/duplicate-subjects.css
+++ b/css/duplicate-subjects.css
@@ -13,8 +13,9 @@
     flex: 1 0 34%;
     margin: 15px 10px;
     border-bottom-left-radius: 0px;
+    border-top-left-radius: 0px;
     margin-left: -4px;
-    border-left: 3px solid black;
+    border-left: 3px solid "#4A4A4A";
 }
 
 .buttons.grid .complex-button2Left {
@@ -22,5 +23,6 @@
     margin: 15px 10px;
     margin-right: -4px;
     border-bottom-right-radius: 0px;
-    border-right: 3px solid black;
+    border-top-right-radius: 0px;
+    border-right: 3px solid "#4A4A4A";
 }