/* -----------------------
  in
----------------------- */
.in {
  position: relative;
  background: #d9e1e9;
  z-index: 2;
}

.in video {
  position: absolute;
  top: 0;
  left: 0;
  width: min(calc(750 / 750 * 100vw), 750px);
  height: min(calc(1383 / 750 * 100vw), 1383px);
  object-fit: cover;
  z-index: -1;
}