success.html

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Success</title>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">



    <!-- Font Awesome -->
    <script src="https://kit.fontawesome.com/463da2e69d.js" crossorigin="anonymous"></script>

  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
</head>
<body>

<div class="container" style = "text-align: center; margin: 100px auto; ">
  <div style="background-color:  #95ff80;" class="jumbotron">
      <h1></h1>
    <h1>Awesome!</h1>      
    <p>You Have Successfully Signed Up.</p>
  </div>      
</div>

</body>
</html>