diff --git a/public/index.html b/public/index.html
index 8296134..8f385bb 100644
--- a/public/index.html
+++ b/public/index.html
@@ -34,6 +34,21 @@
     <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.19.3/jquery.validate.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validation-unobtrusive/3.2.12/jquery.validate.unobtrusive.js"></script>
+
+    <style>
+      html,
+      body {
+        background: #fff;
+        color-scheme: light dark;
+      }
+
+      @media (prefers-color-scheme: dark) {
+        html,
+        body {
+          background: #212529;
+        }
+      }
+    </style>
   </head>
   <body>
     <noscript>You need to enable JavaScript to run this app.</noscript>
