Kejadah Font Awesome? Baca sini.
Add dalam head / master layout view
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.4.0/css/font-awesome.min.css" rel='stylesheet' type='text/css'>
Cara guna, contoh nak add button facebook dengan icon “f”.
<div class="quote"><a href="/login/facebook"> <div class="btn btn-md btn-primary"> <i class="fa fa-facebook"></i> Login with Facebook </div></a></div>
Banyak lagi boleh tengok disini.