navbarhealth.php

<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <a class="navbar-brand" href="#"><img src="img/kenya.png" width="30%">Ministry of Health</a>
   <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive">
      <span class="navbar-toggler-icon"></span>
  </button>
  <!-- Links -->
  <ul class="navbar-nav">
    <li class="nav-item">
      <a class="nav-link" href="healthhomepage.php">Menu</a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="login.php">Login</a>
    </li>

    <!-- Dropdown -->
    <li class="nav-item dropdown">
      <a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">
        Dropdown link
      </a>
      <div class="dropdown-menu">
        <a class="dropdown-item" href="#">Link 1</a>
        <a class="dropdown-item" href="#">Link 2</a>
        <a class="dropdown-item" href="#">Link 3</a>
      </div>
    </li>
  </ul>
</nav>