diff --git a/index.html b/index.html
index b5bc71d..668417f 100644
--- a/index.html
+++ b/index.html
@@ -10,7 +10,7 @@
     <link rel="icon" type="image/png" href="/favicon@2x.png" size="128x128">
     <link rel="icon" type="image/png" href="/favicon@3x.png" size="192x192">
   </head>
-  <body>
+  <body class="dark">
     <h1>Text Proxy</h1>
     <div class="main">
       <form action="/cgi-bin/proxy.cgi" method="get">
