diff --git a/www/settings.html b/www/settings.html
index 69fd41a..f6981b7 100644
--- a/www/settings.html
+++ b/www/settings.html
@@ -129,6 +129,12 @@
             <input class="form-check-input" type="checkbox" id="cityline_queue_retry" />
           </div>
         </div>
+        <div class="row mb-3 bd-callout bd-callout-info disappear" data-under="cityline">
+          <div class="col">
+              <strong>備註：</strong> 
+                Cityline 只能使用 <code>chrome 瀏覽器</code> + <code>nodriver</code>。
+          </div>
+        </div>
 
         <div class="row mb-3">
           <label for="ticket_number" class="col-sm-2 col-form-label">張數</label>