casper-i18n/partials/subscribe-form.hbs

<section class="subscribe-form">
    <h3 class="subscribe-form-title">{{t "Subscribe to"}} {{@site.title}}</h3>
    <p class="subscribe-form-description">{{t "Get the latest posts delivered right to your inbox"}}</p>
    <form data-members-form="subscribe">
        <div class="form-group">
            <input class="subscribe-email" data-members-email placeholder="youremail@example.com" autocomplete="false" />
            <button class="button primary" type="submit">
                <span class="button-content">{{t "Subscribe"}}</span>
                <span class="button-loader">{{> "icons/loader"}}</span>
            </button>
        </div>
        <div class="message-success">
            {{t "<strong>Great!</strong> Check your inbox and click the link to confirm your subscription."}}
        </div>
        <div class="message-error">
            {{t "Please enter a valid email address!"}}
        </div>
    </form>
</section>