.index-video__inner,
.about-video__inner {
  width: 100%;
  position: relative;
  padding-bottom: 56%; }

.index-video video,
.about-video video {
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  object-fit: cover;
  width: 100%;
  height: 100%; }