ul class="navbar-nav ml-auto">
        <li class="nav-item active">
          <a class="nav-link" href="/">Home
            <span class="sr-only">(current)</span>
          </a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="/about">About</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="/service">Services</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="/contact">Contact</a>
        </li>
      </ul>
    <