diff --git a/css/duplicate-subjects.css b/css/duplicate-subjects.css
index 20f8350..5839f3a 100644
--- a/css/duplicate-subjects.css
+++ b/css/duplicate-subjects.css
@@ -14,15 +14,15 @@
     margin: 15px 10px;
     border-bottom-left-radius: 0px;
     border-top-left-radius: 0px;
-    margin-left: -4px;
-    border-left: 3px solid #4A4A4A;
+    margin-left: -5px;
+    border-left: 3.5px solid #4A4A4A;
 }
 
 .buttons.grid .complex-button2Left {
     flex: 1 0 34%;
     margin: 15px 10px;
-    margin-right: -4px;
+    margin-right: -5px;
     border-bottom-right-radius: 0px;
     border-top-right-radius: 0px;
-    border-right: 3px solid #4A4A4A;
+    border-right: 3.5px solid #4A4A4A;
 }
diff --git a/js/build_page.js b/js/build_page.js
index ddbf851..2704794 100644
--- a/js/build_page.js
+++ b/js/build_page.js
@@ -125,9 +125,9 @@
         var classeDiv;
         
         // Check if the subject is repeated
-        if (i < classes.length - 1) duplicateSubjectBoolNext = classes[i+1][1].classe.friendly_name == classe.friendly_name;
+        if (i < classes.length - 1) duplicateSubjectBoolNext = classes[i+1].classe.friendly_name == classe.friendly_name;
         else duplicateSubjectBoolNext = false;
-        if (i > 0) duplicateSubjectBoolPrev = classes[i-1][1].friendly_name == classe.friendly_name;
+        if (i > 0) duplicateSubjectBoolPrev = classes[i-1].friendly_name == classe.friendly_name;
         else duplicateSubjectBoolPrev = false;
         
         // Change the previous classeDiv