.product-gallery-nav {
  width: 88px;
  max-height: 632px;
  overflow-y: auto;
  padding-right: 8px;
}

.product-gallery-thumb {
  margin-bottom: 10px;
  cursor: pointer;
}

.product-gallery-thumb img {
  display: block;
  width: 88px;
  height: 118px;
  object-fit: cover;
  outline: 2px solid transparent;
  outline-offset: -2px;
  transition: outline-color .2s ease;
}

.product-gallery-thumb:hover img,
.product-gallery-thumb:focus img,
.product-gallery-thumb.is-active img {
  outline-color: #141414;
}

.product-gallery-thumb:focus {
  outline: 0;
}

.product-gallery-main .product-gallery-slide {
  display: none;
}

.product-gallery-main .product-gallery-slide:first-child {
  display: block;
}

.product-gallery-main.is-initialized .product-gallery-slide:first-child {
  display: none;
}

.product-gallery-main.is-initialized .product-gallery-slide.is-active {
  display: block;
}

@media (max-width: 767px) {
  .product-gallery-nav {
    display: flex;
    width: 100%;
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    padding-right: 0;
  }

  .product-gallery-thumb {
    flex: 0 0 88px;
    margin-right: 10px;
  }

  .product-gallery-main {
    margin-top: 20px;
  }
}