diff --git a/product.html b/product.html
index dce2380..077ad9f 100644
--- a/product.html
+++ b/product.html
@@ -4,6 +4,7 @@
     <meta charset="UTF-8">
     <meta content="IE=edge" http-equiv="X-UA-Compatible">
     <meta content="width=device-width, initial-scale=1.0" name="viewport">
+    <meta name="theme-color" content="#8b0000">
     <link href="assets/favicon.webp" rel="shortcut icon" type="image/png"/>
     <title>Product</title>
     <link crossorigin="anonymous" href="https://cdn.jsdelivr.net/npm/bootstrap@4.6.0/dist/css/bootstrap.min.css"