Bootstrap Alerts

<html>
<head>
<title>Bootstrap Grid</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">

<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container" style="padding:50px;">
<div class="alert alert-success my-success-alert">
<a href="#" class="close" data-hidden ="true">&times;</a>
  <strong>Success!</strong> This is success message.
</div>
</div>
<style type="text/css">
.my-success-alert{
    color: green;
    background: rgba(195, 195, 195, 0.27);
    border-color: #333;
}
</style>

</body>
</html>