<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="page-wrap d-flex flex-row align-items-center">
<div class="container">
<div class="row justify-content-center">
<div class="col-md-12 text-center">
<span class="display-1 d-block">404</span>
<div class="mb-4 lead">The page you are looking for was not found.</div>
<a href="https://www.totoprayogo.com/#" class="btn btn-link">Back to Home</a>
</div>
</div>
</div>
</div>
body {
background: #dedede;
}
.page-wrap {
min-height: 100vh;
}