.dev-pc .top_youtube {
  width: 500px !important;
  padding-left: calc((100% - 1200px) / 2) !important;
  margin-top: -30px;
}
.dev-pc .top_youtube + div {
  width: 700px;
}
.dev-pc .cms-public .top_menu {
  width: 700px !important;
  padding-left: 0px !important;
}

.dev-sp .top_youtube {
  margin-top: 40px;
}
.dev-sp .top_youtube iframe {
  width: calc(100% - 10px) !important;
  margin-left: 5px;
}