@charset "utf-8";
.list-group.maker,.list-group.series,.list-group.model,.list-group.volume {
  max-height: 300px;
  margin-bottom: 10px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.step {
  display: none;
}
.step.active {
  display: block;
}