diff --git a/plugins/nginx-vhosts/templates/400-error.html b/plugins/nginx-vhosts/templates/400-error.html
index f3353b09f..2f4c79b9c 100644
--- a/plugins/nginx-vhosts/templates/400-error.html
+++ b/plugins/nginx-vhosts/templates/400-error.html
@@ -1,9 +1,32 @@
+<!DOCTYPE html>
 <html>
-  <body style="padding:0; margin: 0;">
-    <div style="width:100%; height: 100%; text-align:center; font-family: arial; font-weight: bold; color: #ffffff; background: rgba(33, 129, 243, 0.66);">
-      <div style="position:absolute; top: 50%; left: 50%; transform: translateX(-50%) translateY(-50%);">
-        <h1>THERE HAS BEEN A 400 ERROR.</h1>
-      </div>
-    </div>
-  </body>
-</html>';
+<head>
+  <title>The page you were looking for cannot be served (4xx)</title>
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <style>
+  body {
+    background-color: #6CABF7;
+    color: #fff;
+    text-align: center;
+    font-family: arial, sans-serif;
+    margin: 0;
+  }
+  div {
+    position:absolute;
+    top: 50%;
+    left: 50%;
+    transform: translateX(-50%) translateY(-50%);
+  }
+  p {
+    color: #eee;
+  }
+  </style>
+</head>
+
+<body>
+  <div>
+    <h2>The page you were looking for cannot be served.</h2>
+    <p>If you are the application owner check the logs for more information.</p>
+  </div>
+</body>
+</html>