<nav class="navbar navbar-expand-lg fixed-top">
  <a class="navbar-brand" href="#">
    <img src="images/logo.jpg" width="180">
  </a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>


  <div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto ml-5" id="menu">
      <li class="nav-item">
        <a class="nav-link" href="dashboard.php" >Dashboard</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="availability.php">Availability</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="bookings.php">Bookings</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="hospitals.php">Hospitals</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="charges.php">Charges</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="kits.php">Kits</a>
      </li>
       <li class="nav-item">
        <a class="nav-link" href="users.php">Users</a>
      </li>
      
    </ul>
    <div class="my-2 my-lg-0">
     <div class="ml-auto userinfo">      
      <div class="user-area dropdown">       
        <a class="dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          <div class="avtar">AS</div>
          <span class="hide-mobile">Alice Smith</span>
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
          <a class="dropdown-item" href="#">Profile</a>
          <a class="dropdown-item" href="#">Setting</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="index.php">Logout</a>
        </div>
      </div>
    </div>
    </div>
  </div>
</nav>
<div class="offset"></div>