diff --git a/app/Helpers/Common_helper.php b/app/Helpers/Common_helper.php
index 51c03f0..94fc840 100644
--- a/app/Helpers/Common_helper.php
+++ b/app/Helpers/Common_helper.php
@@ -68,18 +68,19 @@ function isIPAddress_CommonHelper(string $ip, $type = false): bool
 {
   switch ($type) {
     case 'ipv4':
-      return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
+      $result = filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
       break;
     case 'ipv6':
-      return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);
+      $result = filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);
       break;
     case 'all':
-      return filter_var($ip, FILTER_VALIDATE_IP);
+      $result = filter_var($ip, FILTER_VALIDATE_IP);
       break;
     default:
-      return filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE);
+      $result = filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE);
       break;
   }
+  return $result;
 }
 
 function isHost_CommonHelper(string $host): bool
diff --git a/public/css/admin.css b/public/css/admin.css
index de17490..f4eb976 100644
--- a/public/css/admin.css
+++ b/public/css/admin.css
@@ -32,7 +32,7 @@ div.layout > nav.tail {
 }
 
 div.layout > div.center > div.left_menu {
-  /* border-color: 1px solid red; */
+  border-color: 1px solid red;
 }
 div.layout > div.center > div.content {
   margin: 15px 15px 15px 25px;