.wp-block-video { box-sizing: border-box; }
.wp-block-video video { height: auto; vertical-align: middle; width: 100%; }
@supports (position:sticky) {
  .wp-block-video [poster] { object-fit: cover; }
}
.wp-block-video.aligncenter { text-align: center; }
.wp-block-video :where(figcaption) { margin-bottom: 1em; margin-top: 0.5em; }