create a navigation bar in bootstrap code example

Example 1: bootstrap navbar

<!-- Bootstrap 5 Navbar -->
<nav class="navbar navbar-expand-lg navbar-light bg-light">
   <div class="container-fluid">
      <a class="navbar-brand" href="#">Navbar</a>
      <button
         class="navbar-toggler"
         type="button"
         data-bs-toggle="collapse"
         data-bs-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 me-auto mb-2 mb-lg-0">
            <li class="nav-item">
               <a class="nav-link active" aria-current="page" href="#">Home</a>
            </li>
            <li class="nav-item">
               <a class="nav-link" href="#">Link</a>
            </li>
            <li class="nav-item dropdown">
               <a
                  class="nav-link dropdown-toggle"
                  href="#"
                  id="navbarDropdown"
                  role="button"
                  data-bs-toggle="dropdown"
                  aria-expanded="false"
               >
                  Dropdown
               </a>
               <ul class="dropdown-menu" aria-labelledby="navbarDropdown">
                  <li><a class="dropdown-item" href="#">Action</a></li>
                  <li><a class="dropdown-item" href="#">Another action</a></li>
                  <li><hr class="dropdown-divider" /></li>
                  <li>
                     <a class="dropdown-item" href="#">Something else here</a>
                  </li>
               </ul>
            </li>
            <li class="nav-item">
               <a
                  class="nav-link disabled"
                  href="#"
                  tabindex="-1"
                  aria-disabled="true"
                  >Disabled</a
               >
            </li>
         </ul>
         <form class="d-flex">
            <input
               class="form-control me-2"
               type="search"
               placeholder="Search"
               aria-label="Search"
            />
            <button class="btn btn-outline-success" type="submit">
               Search
            </button>
         </form>
      </div>
   </div>
</nav>

Example 2: bootstrap navbar

<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 mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Link</a>
      </li>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>