.videoblock {
  position: relative;
  width: 220px;
}

.videoblock video,
.videoblock .video-placeholder img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 6px;
}

.video-placeholder {
  position: relative;
}

.video-placeholder .play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0; height: 0;
  border-left: 20px solid rgba(0,0,0,0.75);
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
}