diff --git a/ui/index.html b/ui/index.html
index 051d002..7960cf6 100644
--- a/ui/index.html
+++ b/ui/index.html
@@ -25,6 +25,9 @@
       #config {
         overflow-y: auto;
         max-height: 100vh;
+        padding-left: 5px;
+        box-sizing: border-box;
+        border-left: 3px solid black;
       }
 
       #config label {