@mixin file() {
  border: thin white solid;
  max-height: 9rem;
}

img {
  &.file {
    @include file();
  }
}

video {
  &.file {
    @include file();
  }
}

audio {
  &.file {
    @include file();
  }
}

svg {
  &.tv {
    width: 3rem;
    height: 3rem;
  }
}

span {
  &.enter {
    color: deepskyblue;
  }

  &.quit {
    color: deeppink;
  }
}