lib/bh/views/bh/_dropdown_split.html.erb
<div class="<%= div[:class] %>">
<button type="button" class="<%= button[:class] %>"><%= button[:caption] %></button>
<button class="dropdown-toggle <%= button[:class] %>" type="button" id="<%= button[:id] %>" data-toggle="dropdown">
<span class="caret"></span>
<span class="sr-only">Toggle Dropdown</span>
</button>
<ul class="<%= ul[:class] %>" role="menu" aria-labelledby="<%= button[:id] %>">
<%= content %>
</ul>
</div>