Wistia Embed with Custom Thumbnail

wistia-embed-gif-thumbnail.js

<script>
  window._wq = window._wq || [];
  _wq.push({
    id: "YOUR_WISTIA_VIDEO_ID",
    options: {
      "stillUrl": "URL_TO_HOSTED_IMAGE.gif" // Make sure the image is the same aspect ratio and ideally full-resolution
    }
  });
</script>

<script src="https://fast.wistia.com/embed/medias/YOUR_WISTIA_VIDEO_ID.jsonp" async></script>
<script src="https://fast.wistia.com/assets/external/E-v1.js" async></script>
<div class="wistia_responsive_padding" style="padding:56.25% 0 0 0;position:relative;">
  <div class="wistia_responsive_wrapper" style="height:100%;left:0;position:absolute;top:0;width:100%;">
    <div class="wistia_embed wistia_async_YOUR_WISTIA_VIDEO_ID videoFoam=true" style="height:100%;width:100%">&nbsp;</div>
  </div>
</div>