<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>An error occured</title>
<style type="text/css">
body {
background-color: #121212;
color: #ccc;
display: flex;
}
html, body {
width: 100vw;
height: 100vh;
margin: 0;
overflow-y: auto;
}
#centered {
display: flex;
flex-direction: column;
margin: 0 auto;
min-height: 100vh;
font-size: 16px;
font-family: sans-serif;
flex-basis: 680px;
max-width: calc(100vw - 16px);
border-left: 1px solid #aaa;
border-right: 1px solid #aaa;
padding: 0 1em;
}
</style>
</head>
<body>
<div id="centered">
<h2>An error occured</h2>
<p>The server encountered an error while processing your request.</p>
</div>
</body>
</html>