@charset "utf-8";

#main,
.m-video{width: 100%;height: 100vh;overflow: hidden;}
.m-video{background-color: #000;}
.m-video video{width: 100%;height: 100%;}
.pc-video{display: none}

@media all and (max-width:640px) {
  .pc-video{display: none}
  .mo-video{display: block;}
}