_contents_list_with_body.html.erb

<% add_app_component_stylesheet("contents-list-with-body") %>
<% block = yield %>
<% unless block.empty? %>
  <%
    contents ||= []
    sticky_attr = "sticky-element-container" if contents.any?
  %>
  <%= tag.div(
    id: "contents",
    class: "app-c-contents-list-with-body",
    data: {
      module: sticky_attr,
    },
  ) do %>
    <% if contents.any? %>
      <div class="responsive-bottom-margin">
        <%= render 'govuk_publishing_components/components/contents_list', contents: contents %>
      </div>
    <% end %>
    <%= block %>
    <% if contents.any? %>
      <div data-sticky-element class="app-c-contents-list-with-body__link-wrapper">
        <div class="app-c-contents-list-with-body__link-container">
          <%= render 'components/back_to_top', href: "#contents" %>
        </div>
      </div>
    <% end %>
  <% end %>
<% end %>