<!--Navbar-->

  <nav class="navbar navbar-expand-lg navbar-dark primary-color">

​

    <!-- Navbar brand -->

    <a class="navbar-brand" href="#">Navbar</a>

​

    <!-- Collapse button -->

    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#basicExampleNav"

      aria-controls="basicExampleNav" aria-expanded="false" aria-label="Toggle navigation">

      <span class="navbar-toggler-icon"></span>

    </button>

​

    <!-- Collapsible content -->

    <div class="collapse navbar-collapse" id="basicExampleNav">

​

      <!-- Links -->

      <ul class="navbar-nav mr-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="#">Features</a>

        </li>

        <li class="nav-item">

          <a class="nav-link" href="#">Pricing</a>

        </li>

​

        <!-- Dropdown -->

        <li class="nav-item dropdown">

          <a class="nav-link dropdown-toggle" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true"

            aria-expanded="false">Dropdown</a>

          <div class="dropdown-menu dropdown-primary" aria-labelledby="navbarDropdownMenuLink">

            <div class="row" style="width: 600px;">

              <div class="col">

                <a class="dropdown-item" href="#">Action</a>

                <a class="dropdown-item" href="#">Another action</a>

                <a class="dropdown-item" href="#">Something else here</a>

              </div>

              <div class="col">

                <a class="dropdown-item" href="#">Action</a>

                <a class="dropdown-item" href="#">Another action</a>

                <a class="dropdown-item" href="#">Something else here</a>

              </div>

              <div class="col">

                <a class="dropdown-item" href="#">Action</a>

                <a class="dropdown-item" href="#">Another action</a>

                <a class="dropdown-item" href="#">Something else here</a>

              </div>

            </div>

​

          </div>

        </li>

​

      </ul>

      <!-- Links -->

​

      <form class="form-inline">

        <div class="md-form my-0">

          <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">

        </div>

      </form>

    </div>

    <!-- Collapsible content -->

​

  </nav>

  <!--/.Navbar-->