.ib {
  display: inline-block;
  white-space: nowrap;
}

.product-content__nav-list li a {
  min-height: 4.5em;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  /* transition: none; */
  /* transition: border .4s ease; */
}

.product-content__nav-list li a:hover {
  transition: none;
  transition: border .8s ease;
}

.product-content__nav-list li a:after {
  top: 50%;
  -webkit-transform: translateY(-75%) rotate(45deg);
  transform: translateY(-75%) rotate(45deg);
}

.product-list__product-img {
  text-align: center;
}

.product-content__item {
  margin-bottom: 66px;
}

@media screen and (max-width: 768px) {
  .product-content__item {
    margin-bottom: 30px;
  }
}

.product-content__head-1 {
  margin-top: 30px;
  padding-top:  10px;
}

@media screen and (max-width: 768px) {
  .product-content__head-1 {
    margin-top: 20px;
  }
}

.product-content__head-2 {
  margin-top: 20px;
  padding-top: 10px;
}