%ul.nav.nav-tabs#md_tabs
  %li
    %a{"data-toggle" => "tab", href: "##{id}_edit"}=t 'layout.edit'
  %li
    %a{"data-toggle" => "tab", href: "##{id}_preview"}=t 'layout.preview'

.tab-content
  .tab-pane.active{id: "#{id}_edit"}
    =f.text_area :body, cols: 80, id: "#{id}_edit_input"
    =hidden_field_tag :body_dup, nil, name: 'text', id: "#{id}_edit_input_dup"
  .tab-pane{id: "#{id}_preview"}
    .formatted.cm-s-default.md_and_cm