oliverdavies.uk/source/_includes/test-driven-drupal-subscribe-form.html.twig

<p><strong>Enter your email address to subscribe to the Test-Driven Drupal mailing list
and be notified of any updates.</strong></p>

<div class="w-full lg:w-2/3">
    <form action="https://oliverdavi.us18.list-manage.com/subscribe/post?u=b4ac8dd177796d37b93f9c285&amp;amp;id=033c84e0d5" method="post" name="mc-embedded-subscribe-form" novalidate="">
        <div id="mc_embed_signup_scroll">
            <div style="position: absolute; left: -5000px;" aria-hidden="true">
                <input type="text" name="b_46d1ff41a9918b3b7efb885dc_6df88a3d0f" tabindex="-1" value="">
            </div>

            <div class="flex overflow-hidden">
                <input type="email" value="" name="EMAIL" class="block p-3 pl-5 w-full rounded-l-full border required email border-gray" placeholder="enter your email" aria-label="Email">
                <button type="submit" name="subscribe" class="block py-3 pr-6 pl-5 w-auto text-white bg-blue-600 rounded-r-full border border-l-0 border-gray">Subscribe</button>
            </div>
        </div>
    </form>
</div>