simple_form nested inputs

simple_form_nested_inputs.html.erb

<%= f.input :kind, label: t('category.post.display.display') do %>
  <%= f.input_field :kind, as: :select, 
                    collection: [[t('category.post.display.full'), 'full'], [t('category.post.display.summary'), 'short'], 
                                 [t('category.post.display.word.word'), 'word']], 
                    include_blank: false %>

  <%= f.input :word_count, label: t('category.post.display.word.count'), wrapper_html: { id: 'category_word_count_div', class: 'hidden' } %>
  
  <%= f.input :image_container, wrapper_html: { id: 'img_container', class: "hidden" }, label: t('image.image') do %>
    <%= f.input_field :img, as: :boolean %>
    <%= f.input :img_width, label: t('image.width'), required: false, wrapper_html: { id: 'category_img_width_div', class: 'hidden' } %>
    <%= f.input :img_align, label: t('image.alignment'), as: :select, collection: [[t('left'), 'left'], [t('right'), 'right'], [t('center'), 'center']], wrapper_html: { id: 'category_img_align_div', class: 'hidden' }, include_blank: false %>
  <% end %>

<% end %>