1.wp-block-video{
  2  box-sizing:border-box;
  3}
  4.wp-block-video video{
  5  height:auto;
  6  vertical-align:middle;
  7  width:100%;
  8}
  9@supports (position:sticky){
 10  .wp-block-video [poster]{
 11    object-fit:cover;
 12  }
 13}
 14.wp-block-video.aligncenter{
 15  text-align:center;
 16}
 17.wp-block-video :where(figcaption){
 18  margin-bottom:1em;
 19  margin-top:.5em;
 20}