<div class="container">
<span class="col-sm-12">
  <a  href="#" class="btn btn-primary btn-small" ng-show="show=='logged-out'" ng-click="login()">Login</a>
  <a  href="#" class="btn btn-primary btn-small" ng-show="show=='denied'"     ng-click="login()">Access denied. Try again.</a>
<!--   <a  href="#" class="btn btn-primary btn-small" ng-show="show=='logged-in'"  ng-click="logout()">Logout.</a>
 -->
 </span>
</div>