app/views/invitations/upgrade.html.slim
.row
.span4.offset4.well
= simple_form_for resource, :as => resource_name, :url => user_invitation_path(resource_name), :html => {:method => :post, :class => 'form-full-width'} do |f|
legend = t('labels.need_upgrade_invitation')
= f.input :invite_reason, :as => :text, :label => false, :input_html => { :rows => 3}
.help-block = t('views.users.upgrade_invitation')
= f.submit t('labels.apply_sign_up'), :class => 'btn btn-success btn-large'