expand_less
<ul class="nav navbar-nav">
<li class="nav-item dropdown">
<a href="#" class="nav-link dropdown-toggle" data-toggle="dropdown" role="button"
aria-expanded="false">Explore <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li class="nav-item px-2">{{Companies|nav_link; title: Companies}}</li>
<li class="nav-item px-2">{{Topics|nav_link; title: Topics}}</li>
<li class="nav-item px-2">{{Metrics|nav_link; title: Metrics}}
<hr/>
</li>
<li class="nav-item px-2">{{Projects|nav_link: title: Projects}}{{Projects|nav_link; title: Projects}}</li>
<li class="nav-item px-2">{{Research Groups|nav_link; title: Groups}}</li>
<li class="nav-item px-2">{{Sources|nav_link; title: Sources}}</li>
<li class="nav-item px-2">{{:recent|nav_link; title:Changes}}</li>
</ul>
</li>
<li class="nav-item dropdown">
<a href="#" class="nav-link dropdown-toggle" data-toggle="dropdown" role="button"
aria-expanded="false">About <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li class="nav-item px-2">{{About_WikiRate|nav_link; title: About Us}}</li>
<li class="nav-item px-2">{{Program|nav_link;title: Programs}}</li>
<li class="nav-item px-2">{{Using WikiRate|nav_link}}</li>
<li class="nav-item px-2">{{Frequently_Asked_Questions|nav_link;title: FAQ}}</li>
<li class="nav-item px-2">{{Tickets|nav_link; title: Report Issue}}</li>
</ul>
</li>
</ul>