discourse/app/views/users_email/show_confirm_new_email.html.erb

<div id="simple-container">
  <% if @done %>
    <h2>
      <%= t 'change_email.confirmed' %>
    </h2>
    <p>
    <a class="btn" href="<%= path "/" %>"><%= t('change_email.please_continue', site_name: SiteSetting.title) %></a>
    </p>
  <% elsif @error %>
    <div class='alert alert-error'>
      <%= @error %>
    </div>
  <% else %>
    <h2><%= t 'change_email.authorizing_new.title' %></h2>
    <p>
      <%= t 'change_email.authorizing_new.description' %>
    </p>
    <p>
      <%= @to_email %>
    </p>

    <%=form_tag(u_confirm_new_email_path, method: :put) do %>
      <%= hidden_field_tag 'token', @token.token %>

      <% if @show_backup_codes %>
        <div id="backup-second-factor-form" style="">
          <h3><%= t('login.second_factor_backup_title') %></h3>
            <%= label_tag(:second_factor_token, t("login.second_factor_backup_description")) %>
            <div><%= render 'common/second_factor_backup_input' %></div>
            <%= submit_tag(t("submit"), class: "btn btn-primary") %>
        </div>
        <%= link_to t("login.second_factor_toggle.totp"), show_backup: "false" %>
      <% elsif @show_second_factor %>
        <div id="primary-second-factor-form">
          <h3><%= t('login.second_factor_title') %></h3>
          <%= label_tag(:second_factor_token, t('login.second_factor_description')) %>
          <div><%= render 'common/second_factor_text_field' %></div>
          <% if @show_invalid_second_factor_error %>
            <div class='alert alert-error'><%= t('login.invalid_second_factor_code') %></div>
          <% end %>
          <%= submit_tag t('submit'), class: "btn btn-primary" %>
        </div>
        <% if @backup_codes_enabled %>
          <%= link_to t("login.second_factor_toggle.backup_code"), show_backup: "true" %>
        <% end %>
      <% else %>
        <%= submit_tag t('change_email.confirm'), class: "btn btn-primary" %>
      <% end %>
    <%end%>
  <% end%>
</div>