.html-video-wrapper {
  position: relative;
  padding-bottom: 125%;
}

.html-video-wrapper video {
  position: absolute;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media screen and (min-width: 750px) {
  .html-video-wrapper {
    padding-bottom: 56.25%;
  }  
}