diff --git a/errors/404.html b/errors/404.html
index 4baa7aa..5ddd2b4 100644
--- a/errors/404.html
+++ b/errors/404.html
@@ -1 +1,11 @@
-Looser
\ No newline at end of file
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Document</title>
+</head>
+<body>
+    <h1>Looser</h1>
+</body>
+</html>
\ No newline at end of file
