<nav class="navbar navbar-dark bg-dark">
<div class="container-fluid">
 <a class="navbar-brand" href="#">Navbar</a>
<a class="nav-link" href="#">Home</a>
 <a class="nav-link" href="#">About us</a>
<a class="nav-link" href="#">Contact us</a>
  </div>
</nav>

External CSS

  1. https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.0/css/bootstrap.min.css

External JavaScript

This Pen doesn't use any external JavaScript resources.