grav-lecampus/user/themes/lecampus/templates/partials/newsletters.html.twig

<section id="newsletter">
  <div id="mc_embed_signup">
    <form action="https://kevintessier.us19.list-manage.com/subscribe/post?u=a98b763288f940083bf28857c&amp;id=96d6b6e702" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate>
      <div id="mc_embed_signup_scroll">
        <label for="mce-EMAIL">Recevoir l'actualité du Campus</label></br>
        <input type="email" value="" name="EMAIL" class="email" id="mce-EMAIL" placeholder="adresse e-mail" required>
        <div style="position: absolute; left: -5000px;" aria-hidden="true"><input type="text" name="b_a98b763288f940083bf28857c_96d6b6e702" tabindex="-1" value=""></div>
        <div class="clear"><input type="submit" value="ok" name="subscribe" id="mc-embedded-subscribe" class="button"></div>
      </div>
    </form>
  </div>
</section>