Dropdown right aligned B4

<!DOCTYPE html>
<html>
<head>
	<title>CAROUSEL BOOTSTRAP4 | par NGLESSON</title>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<meta name="keyword" content="CAROUSEL BOOTSTRAP4">
	<meta name="author" content="Mezgani said">
	<meta name="copyright" content="NGLESSON">
	<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
</head>
<body class="container-fluid">
    <header class="row mb-5 mt-5">
      <div class="col-12">
		<nav class="navbar navbar-expand-lg navbar-light bg-light">
		  <a class="navbar-brand" href="#">Navbar</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 ml-auto">
			  <li class="nav-item dropdown">
				<button type="button" class="btn btn-secondary dropdown-toggle" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Welcome</button>
				<div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdownMenuLink">
				  <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>
			  </li>
			</ul>
		  </div>
		</nav>	  
	  </div>
	</header>      
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>                       
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
</body>
</html>

                                    

                                    
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