@charset "UTF-8";

.yt {
    width: 1050px;
    margin: 0 auto 80px;
}
.mv {
    width: 100%;
}


@media screen and (max-width: 896px) {

    .yt {
      position: relative;
  width: 100%;
  padding-top: 56.25%;
}
.yt iframe {
    position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
}
}