mailtrain/views/subscription/confirm-notice.hbs

<div class="alert alert-warning alert-dismissible" role="alert" id="js-warning">
    <button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
    <strong>{{#translate}}Warning!{{/translate}}</strong> {{#translate}}If JavaScript was not enabled then no confirmation message was sent{{/translate}}
</div>
<script>
    document.getElementById('js-warning').style.display = 'none';
</script>

<h2>{{#translate}}Almost finished.{{/translate}}</h2>

<p>{{#translate}}We need to confirm your email address. To complete the subscription process, please click the link in the email we just sent you.{{/translate}}</p>

<p>
    <a class="btn btn-primary" href="{{homepage}}" role="button">
        <span class="glyphicon glyphicon-arrow-left" aria-hidden="true"></span> {{#translate}}return to our website{{/translate}}
    </a>
</p>