.item_detail_info {
   font-size: 14px;
 }
 .item_detail_info .variations{
    margin:5px 0;
 } 
 #item_detail_insert_cart {
   text-decoration: none;
   border-style: none;
 }
 #item_detail_insert_cart:hover {
   background-color: transparent;
 }
 .item_detail_number {
   text-align: right; padding-bottom: 15px;
 }
  #item_detail_number,#item_detail_cart {
   margin-bottom: 20px;
 }
  .sell_out_str {
   display: inline-block;
   border: 1px solid #ff6401;
   background-color: #fff;
   color: #ff6401;padding: 7px;
   font-size: 12px;
   transition: 0.5s;width: 88%;
   max-width: 350px;
   font-weight: bold;
   text-align:center;
 }

html, button, input, select, textarea, .pure-g [class*="pure-u"] {
    font-family: "メイリオ",Meiryo,"ヒラギノ角ゴ Pro W3",Hiragino Kaku Gothic Pro,"ＭＳ Ｐゴシック",sans-serif;
}

#cart-btn.cart-on {
    opacity: 0;
    transition-duration: 0s;
}
#cart-btn {
    z-index: 98;
    position: relative;
    width: 100%;
    opacity: 1;
}