journalduhacker/app/views/login/twofa.html.erb

<div class="box wide">
  <div class="legend">
    <%= t('.login2fa') %>
  </div>

  <%= form_tag twofa_login_url do %>
    <p>
    <%= t('.logintotpcode') %>
    </p>

    <p>
    <%= label_tag :totp_code, t('.totpcode') %>
    <%= number_field_tag :totp_code, "", :size => 10, :autocomplete => "off",
        :autofocus => true, :class => "totp_code" %>
    <br />
    </p>

    <p>
    <%= submit_tag t('.loginbutton') %>
    </p>
  <% end %>
</div>