rails nested checkboxes - the label wraps a checkbox, the label has the same name as the checkbox. the actual label of text should be a line beneath the checkbox input
<%= form.label :reject_some_setting, class: "checkbox-inline" do %>
<% = form.check_box :reject_some_setting %>
<span class='inline-label'>
<%= t("form.user.reject_some_setting") %>
</span>
<% end %>
= form.label :reject_some_setting, class: "checkbox-inline" do
= form.check_box :reject_some_setting
%span.inline-label= t("form.user.reject_some_setting")