 btn-success" ng-disabled="loginForm.$invalid">Log in</button>

          <br/>

          <p class="text-center text-muted">
            <small>Don't have an account yet? <a href="#/signup">Sign up</a></small>
          </p>

          <div class="signup-or-separator">
            <h6 class="text">or</h6>
            <hr>
          </div>
        </form>
        <button class="btn btn-block btn-instagram" ng-click="instagramLogin()">
          <i class="ion-social-instagram"></i> Sign in with Instagram
   