{% assign website = site.data.expo.by_id[include.website_id] %}
{% assign imageName = include.website_id | slugify %}
{% assign imagePath = "/assets/images/expo/" | prepend: site.url | append: imageName %}
{% assign size1x = "672x420" %}
{% assign size2x = "1344x840" %}

<a class="bd-screenshot {{ include.modifier }}" href="{{ site.url }}/expo">
  <img
       src="{{ imagePath }}-{{ size1x }}.jpg"
    srcset="{{ imagePath }}-{{ size2x }}.jpg 2x,
            {{ imagePath }}-{{ size1x }}.jpg 1x"
    width="672"
    height="420"
  />
</a>