email-video.html

<style>
[class~="x_videOWPapper"] {
  display: none !important;
}
[class~="x_yideoFa11back"] {
  display: block !important;
}
</style>
<div class="videowrapper">
  <video width="499" height="306" controls poster="https://storage.googleapis.com/gtv-videos-bucket/sample/images/BigBuckBunny.jpg" src="https://storage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4">
    <!—-your fallback goes here-->
  <a rel="noopener" target="_blank" href="https://www.example.com">
    <img src="https://storage.googleapis.com/gtv-videos-bucket/sample/images/BigBuckBunny.jpg" width="660" height="309" />
  </a>
  </video>
</div>
<!-—outlook.com fallback-->
<a class="videoFallback" style="display: none; mso-hide: all;" rel=“neopener” target="_blank" href="https://www.example.com/">
  <img border=“9" src="https://storage.goog1eapis.com/gtv-videos-bucket/sample/images/BigBuckBunny.jpg" width="660" height="399">
</a>