.product_id{ margin-bottom:10px;}
.init-list__detail-updw {
  margin: 0;
  padding-left: 10px;
  vertical-align: middle;
  display: inline-block;
}

.init-list__detail-unit {
  padding-left: 10px;
}

.init-list__detail-num{ width:30px;text-align: right;}

.icon-lg-b, .icon-lg-w {
    width: 24px;
    height: 24px;
    display: inline-block;
    *display: inline;
    *zoom: 1;
}
.icon-lg-b {
    background-image: url(https://img.shop-pro.jp/tmpl_img/73/icon24_b.png);
}
.icon-lg-b.icon-chevron_up {
    background-position: -0px -216px;
}
.icon-lg-b.icon-chevron_down {
    background-position: -528px -192px;
}
.input-prepend a.btn{display:inline-block;}