Navs
These modular elements can be readily used and customized in every layout across pages.
For detail documentation, View Nav on Bootstrap
Horizontal
<ul class="nav">
<li class="nav-item"><a class="nav-link active" href="#">Active</a></li>
<li class="nav-item"><a class="nav-link" href="#">Link</a></li>
<li class="nav-item"><a class="nav-link" href="#">Link</a></li>
<li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li>
</ul>Vertical
<ul class="nav flex-column">
<li class="nav-item"><a class="nav-link active" href="#">Active</a></li>
<li class="nav-item"><a class="nav-link" href="#">Link</a></li>
<li class="nav-item"><a class="nav-link" href="#">Link</a></li>
<li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li>
</ul>Pills
<ul class="nav nav-pills">
<li class="nav-item"><a class="nav-link active" href="#">Active</a></li>
<li class="nav-item"><a class="nav-link" href="#">Link</a></li>
<li class="nav-item"><a class="nav-link" href="#">Link</a></li>
<li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li>
</ul>Fill and Justify
<ul class="nav nav-pills nav-fill">
<li class="nav-item"><a class="nav-link active" href="#">Active</a></li>
<li class="nav-item"><a class="nav-link" href="#">Longer nav link</a></li>
<li class="nav-item"><a class="nav-link" href="#">Link</a></li>
<li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li>
</ul>