.video-window {
  width: 75%;
  max-width: 1800px;
}

.video-body {
  display: block;
}

@media (min-width: 1600px) {
  .video-grid { column-count: 6; }
}

@media (max-width: 900px) {
  .video-grid { column-count: 3; }
}
@media (max-width: 600px) {
  .video-grid { column-count: 2; }
}

#video-sentinel {
  height: 1px;
}