.wp-block-cover.has-video > video{
  border: none;
  bottom: 0;
  box-shadow: none;
  height: 100%;
  left: 0;
  margin: 0;
  max-height: none;
  max-width: none;
  object-fit: cover;
  outline: none;
  padding: 0;
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
}