{% load mote_tags %}
{% with element.json.data.BaseTeaserThumbnail as "thumbnail" %}
{% if thumbnail.img %}
<a href="#" class="{{ thumbnail.modifiers }}-teaser__thumbnail-link">
  <img alt="{{ thumbnail.img.alt }}" src="{{ thumbnail.img.src }}" class="{{ thumbnail.modifiers }}-teaser__thumbnail" />
</a>
{% endif %}
{% endwith %}