<figure class="thumbnail thumbnail-video">
    <div class="thumbnail-overlay">
        <img{% if alt is defined %} alt="{{ alt }}"{% endif %} src="//i1.ytimg.com/vi/{{ id }}/hqdefault.jpg" class="img-fluid">
        <a data-fancybox class="thumbnail-icon video-icon" href="//www.youtube.com/embed/{{ id }}" aria-label="Lire la vidéo" title="Lire la vidéo">
            {# <img src="{{ asset('front/images/__cgenial/icon_play_grey.png') }}" class="thumbnail-icon-play" /> #}
        </a>
    </div>
    {% if caption is defined %}<figcaption class="thumbnail-caption">{{ caption|raw }}</figcaption>{% endif %}
</figure>