#option_tbl .stock_zero {
  color: #FF0000; 
}

#instock-table table,
#outstock-table table{
    width: 50%;
    float: left;
}

.option-table th,
.option-table td{
  height: 50px;
}

.product__price {
  font-size: 30px;
}

.product__price:before {
  content: "価格：";
  font-size: 22px;
}

/* セール価格表示 */
.lbl--discount_rate {
  position: relative;
  background: #f00;
  color: #fff;
  padding: 4px;
  border-radius: 5px;
  font-size: 15px;
  top: -5px;
  left: 5px;
}
.product__teika {
  font-size: 20px;
}
.product__teika:before {
  content: "定価：";
  font-size: 20px;
}

.txt--md.product__model:before {
  content: "型番：";
  color: #666;
  font-size: 12px;
}

.product__explain a{
  color: #08c;
  font-weight: bold;
  text-decoration: underline;
  font-size: 15px;
}
.product__explain a:hover{
  text-decoration: none;
}

div.relation a{
  padding: 5px 8px;
  border: 1px solid #2196f3;
  border-radius: 5px;
  color: #2196f3;
  transition: .4s;
  margin: 5px;
  display: inline-block;
  text-decoration: none;
}

div.relation a:hover{
  background: #2196f3;
  color: white; 
}