Bootstrap Button States

.Active and .disabled classes are used to active and disabled states of buttons.

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Bootstrap Button Example</title>
    <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
    <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
</head>
<body>
    <h2>Button States</h2>
    <button type="button" class="btn btn-primary active">Active</button>
    <button type="button" class="btn btn-primary disabled">Disabled</button>
</body>
</html>

Output