css for navbar bootstrap

1 
2<nav class="navbar navbar-expand-lg navbar-light bg-light">
3  <a class="navbar-brand" href="#">Navbar</a>
4  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
5    <span class="navbar-toggler-icon"></span>
6  </button>
7  <div class="collapse navbar-collapse" id="navbarNav">
8    <ul class="navbar-nav justify-content-end">
9      <li class="nav-item active">
10        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
11      </li>
12      <li class="nav-item">
13        <a class="nav-link" href="#">Features</a>
14      </li>
15      <li class="nav-item">
16        <a class="nav-link" href="#">Pricing</a>
17      </li>
18    </ul>
19  </div>
20</nav>
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