diff --git a/public/404.html b/public/404.html
index 85150ae6c6..4e42e63b73 100644
--- a/public/404.html
+++ b/public/404.html
@@ -11,7 +11,6 @@
     }
     div.dialog {
       width: 600px;
-      margin: 2em auto 0 auto;
       margin: auto;
     }
     @media only screen
@@ -28,7 +27,7 @@
 </head>
 
 <body>
-  <!-- This file lives in public/500.html -->
+  <!-- This file lives in public/404.html -->
   <div class="dialog">
     <a href="/" ><img src="/500.jpg" /></a>
     <h1>Oops! Page not found.</h1>
diff --git a/public/404.jpg b/public/404.jpg
deleted file mode 100644
index 836b4e0188..0000000000
Binary files a/public/404.jpg and /dev/null differ
diff --git a/public/500.html b/public/500.html
index 29bf60dda5..b3dd25194a 100644
--- a/public/500.html
+++ b/public/500.html
@@ -11,7 +11,6 @@
     }
     div.dialog {
       width: 600px;
-      margin: 2em auto 0 auto;
       margin: auto;
     }
     @media only screen
