How to put text underneath a navbar-brand in bootstrap?

Assuming I have a bootstrap 3 navbar with a navbar-brand containing text, how can I add a small subtitle that fits right underneath that navbar-brand?

This is one way of doing it:

DEMO: http://jsbin.com/AFiNehIz/1/edit

HTML

 <a class="navbar-brand" href="#">Project name<small>Tagline goes here</small></a>

CSS

.navbar-brand small {
  display:block;
  font-size:12px;
}

.navbar-toggle {top:10px}

@media (min-width:768px) {
  
  .navbar-brand {
    padding-top:20px;
  }
  
  .nav.navbar-nav a {
    padding-top:30px;
    padding-bottom:30px;
  }

}