Refer below code. Bind the label from database.
HTML
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" />
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script>
<div class="container">
<button class="btn btn-default btn-lg btn-link" style="font-size:36px;">
<span class="glyphicon glyphicon-comment"></span>
</button>
<asp:Label runat="server" class="badge badge-notify">3</asp:Label>
</div>
CSS
.badge-notify
{
background:red;
position:relative;
top: -20px;
left: -35px;
}
Demo
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" rel="stylesheet">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" type="text/javascript"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js" type="text/javascript"></script>
<div class="container">
<button class="btn btn-default btn-lg btn-link" style="font-size: 36px;">
<span class="glyphicon glyphicon-comment"></span>
</button>
<span class="badge badge-notify">3</span>
</div>
<style>
.badge-notify {
background: red;
position: relative;
top: -20px;
left: -35px;
}
</style>
</body>
</html>
Demo