{% block preview %}
<div class="preview-container">
{% if post.get_field('form') != "" %}
    <div class="landing-contact-form">
        <div>
           {% set args = '[contact-form-7 id="'~ post.get_field('form') ~'"]' %}
           {{args}}
        </div>
    </div>
{% endif %}
</div>
{% endblock %}