app/views/kaminari/_gap.html.erb
<%# Non-link tag that stands for skipped pages...
- available local variables
current_page: a page object for the currently displayed page
num_pages: total number of pages
per_page: number of items to fetch per page
remote: data-remote
-%>
<li class="page gap"><%= raw(t 'views.pagination.truncate') %></li>