Vulcan/packages/telescope-embedly/lib/client/post_thumbnail.html

<template name="post_thumbnail">
  {{#if thumbnailUrl}}
    <div class="post-thumbnail" aria-hidden="true">
      <a class="post-thumbnail-link {{playVideoClass}}" href="{{this.getLink}}" target="{{this.getLinkTarget}}">
        <img class="post-thumbnail-image" src="{{thumbnailUrl}}" onerror="this.style.display='none';" aria-hidden="true"/>
      </a>
    </div>
  {{else}}
    <div class="post-thumbnail-empty"></div>
  {{/if}}
  {{#with media}}
    {{#if showVideo}}
        <div class="post-video-lightbox">
          <a class="post-video-lightbox-hide" href="#">×</a>
          <div class="post-video-lightbox-inner js-video">
            {{{html}}}
          </div>
        </div>
    {{/if}}
  {{/with}}
</template>