The following code shows how to disable text.
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet"
href="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">
<style type="text/css">
.bs-example {<!-- w ww . j a v a 2 s . c o m-->
margin: 20px;
}
</style>
</head>
<body>
<div class="bs-example">
<div class="text-muted">This text is grayed out.</div>
<p class="text-muted">This paragraph is grayed out.</p>
</div>
</body>
</html>