.centered-column{display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.navbar-nav .nav-item{margin-right:20px}.navbar-nav .nav-item:last-child{margin-right:0}.navbar-nav .nav-item a{text-decoration:none;color:#000}.navbar-nav .nav-item a:hover{color:#555}