diff --git a/html/index.html b/html/index.html
index a690e0e..667f4fb 100644
--- a/html/index.html
+++ b/html/index.html
@@ -4,23 +4,37 @@
   <meta charset="UTF-8">
   <title>Not Found</title>
   <style>
+    .center-container {
+      display: flex;
+      flex-direction: column;
+      justify-content: center;
+      align-items: center;
+      min-height: 60vh;
+    }
     body {
+      margin: 0;
       font-family: Arial, sans-serif;
-      text-align: center;
-      margin-top: 50px;
+      background-color: #181a20;
+      color: #e0e0e0;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      height: 100vh;
     }
     h1 {
       font-size: 48px;
-      color: #333;
+      color: #fafafa;
     }
     p {
       font-size: 24px;
-      color: #666;
+      color: #b0b0b0;
     }
   </style>
 </head>
 <body>
-  <h1>404 Not Found</h1>
-  <p>The requested resource could not be found.</p>
+  <div class="center-container">
+    <h1>404 Not Found</h1>
+    <p>The requested resource could not be found.</p>
+  </div>
 </body>
 </html>
