diff --git a/k8s/apps/syncthing/nginx-router.yaml b/k8s/apps/syncthing/nginx-router.yaml
index 1684a34..a36ea57 100644
--- a/k8s/apps/syncthing/nginx-router.yaml
+++ b/k8s/apps/syncthing/nginx-router.yaml
@@ -43,8 +43,8 @@ data:
             sub_filter '"/vendor' '"/nas/vendor';
             sub_filter '"/theme-assets' '"/nas/theme-assets';
             sub_filter '"/syncthing' '"/nas/syncthing';
-            # Add back button before logo
-            sub_filter '<img class="logo hidden-xs"' '<a href="/" class="btn btn-sm btn-default" style="margin-right: 10px; vertical-align: middle;">← Back</a><img class="logo hidden-xs"';
+            # Add floating back button
+            sub_filter '<body>' '<body><div style="position: fixed; top: 10px; left: 10px; z-index: 9999;"><a href="/" style="background: #0078e7; color: white; padding: 8px 16px; border-radius: 4px; text-decoration: none; display: inline-block; box-shadow: 0 2px 4px rgba(0,0,0,0.2);">← Back to Instances</a></div>';
             sub_filter_once off;
             sub_filter_types text/html text/css application/javascript;
         }
@@ -74,8 +74,8 @@ data:
             sub_filter '"/vendor' '"/master/vendor';
             sub_filter '"/theme-assets' '"/master/theme-assets';
             sub_filter '"/syncthing' '"/master/syncthing';
-            # Add back button before logo
-            sub_filter '<img class="logo hidden-xs"' '<a href="/" class="btn btn-sm btn-default" style="margin-right: 10px; vertical-align: middle;">← Back</a><img class="logo hidden-xs"';
+            # Add floating back button
+            sub_filter '<body>' '<body><div style="position: fixed; top: 10px; left: 10px; z-index: 9999;"><a href="/" style="background: #0078e7; color: white; padding: 8px 16px; border-radius: 4px; text-decoration: none; display: inline-block; box-shadow: 0 2px 4px rgba(0,0,0,0.2);">← Back to Instances</a></div>';
             sub_filter_once off;
             sub_filter_types text/html text/css application/javascript;
         }
@@ -105,8 +105,8 @@ data:
             sub_filter '"/vendor' '"/iris/vendor';
             sub_filter '"/theme-assets' '"/iris/theme-assets';
             sub_filter '"/syncthing' '"/iris/syncthing';
-            # Add back button before logo
-            sub_filter '<img class="logo hidden-xs"' '<a href="/" class="btn btn-sm btn-default" style="margin-right: 10px; vertical-align: middle;">← Back</a><img class="logo hidden-xs"';
+            # Add floating back button
+            sub_filter '<body>' '<body><div style="position: fixed; top: 10px; left: 10px; z-index: 9999;"><a href="/" style="background: #0078e7; color: white; padding: 8px 16px; border-radius: 4px; text-decoration: none; display: inline-block; box-shadow: 0 2px 4px rgba(0,0,0,0.2);">← Back to Instances</a></div>';
             sub_filter_once off;
             sub_filter_types text/html text/css application/javascript;
         }
