<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <div class="container-fluid">
    <a rel="nofollow" class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarNav">
      <ul class="navbar-nav">
        <li class="nav-item">
          <a rel="nofollow" class="nav-link active" aria-current="page" href="#">Home</a>
        </li>
        <li class="nav-item">
          <a rel="nofollow" class="nav-link" href="#">Features</a>
        </li>
        <li class="nav-item">
          <a rel="nofollow" class="nav-link" href="#">Pricing</a>
        </li>
        <li class="nav-item">
          <a rel="nofollow" class="nav-link disabled">Disabled</a>
        </li>
      </ul>
    </div>
  </div>
</nav>

<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <a rel="nofollow" class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="collapse navbar-collapse" id="navbarNavAltMarkup">
    <div class="navbar-nav">
      <a rel="nofollow" class="nav-item nav-link active" href="#">Home <span class="sr-only">(current)</span></a>
      <a rel="nofollow" class="nav-item nav-link" href="#">Features</a>
      <a rel="nofollow" class="nav-item nav-link" href="#">Pricing</a>
      <a rel="nofollow" class="nav-item nav-link disabled" href="#">Disabled</a>
    </div>
  </div>
</nav>

<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <a rel="nofollow" class="navbar-brand" href="#">Navbar w/ text</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="collapse navbar-collapse" id="navbarText">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a rel="nofollow" class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a rel="nofollow" class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a rel="nofollow" class="nav-link" href="#">Pricing</a>
      </li>
    </ul>
    <span class="navbar-text">
      Navbar text with an inline element
    </span>
  </div>
</nav>

<ul class="nav nav-tabs" id="myTab" role="tablist">
  <li class="nav-item">
    <a rel="nofollow" class="nav-link active" id="home-tab" data-toggle="tab" href="#home" role="tab" aria-controls="home" aria-selected="true">Home</a>
  </li>
  <li class="nav-item">
    <a rel="nofollow" class="nav-link" id="profile-tab" data-toggle="tab" href="#profile" role="tab" aria-controls="profile" aria-selected="false">Profile</a>
  </li>
  <li class="nav-item">
    <a rel="nofollow" class="nav-link" id="contact-tab" data-toggle="tab" href="#contact" role="tab" aria-controls="contact" aria-selected="false">Contact</a>
  </li>
</ul>
<div class="tab-content" id="myTabContent">
  <div class="tab-pane fade show active" id="home" role="tabpanel" aria-labelledby="home-tab">...</div>
  <div class="tab-pane fade" id="profile" role="tabpanel" aria-labelledby="profile-tab">...</div>
  <div class="tab-pane fade" id="contact" role="tabpanel" aria-labelledby="contact-tab">...</div>
</div>

<nav class="navbar navbar-light bg-light">
  <form class="form-inline">
    <button class="btn btn-outline-success" type="button">Main button</button>
    <button class="btn btn-sm btn-outline-secondary" type="button">Smaller button</button>
  </form>
</nav>