views/content-entry-content.twig
<div class="entry-content" itemprop="description">
{% if post.thumbnail %}
<a class="featured-image" href="{{ fn( 'esc_url', post.link ) }}" title="{{ fn( 'esc_attr', post.title ) }}">
<img class="featured-image" src="{{ fn( 'esc_url', post.thumbnail.src|resize(thumbnail.width, thumbnail.height) ) }}" srcset="{{ fn( 'esc_url', post.thumbnail.src|resize(thumbnail.width, thumbnail.height)|retina(1) ) }} 1x, {{ fn( 'esc_url', post.thumbnail.src|resize(thumbnail.width, thumbnail.height)|retina(2) ) }} 2x">
</a>
{% endif %}
{% if teaser_mode == 'full' %}
{{ post.content }}
{% else %}
{{ post.get_preview }}
{% endif %}
<div class="clearfix"></div>
</div>