.product__section .section__product_title {
    margin: 0;
    border-bottom: 2px dotted #1d2f5f;
    margin-bottom: 20px;
    padding-bottom: 12px;
   font-weight: bold;
}
.product__image-thumb img {
  box-sizing: border-box;
  border: 1px solid #ddd;
}
.product__image-thumb img:hover {
  box-sizing: border-box;
  border: 1px solid #111;
}
.product__image-thumb img:active {
  box-sizing: border-box;
  border: 1px solid #666;
}

.product__price-part_title {
    border-bottom: 1px solid #1d2f5f;
    margin-bottom: 10px;
   font-weight: bold;
}
.product__prices_wrapper {
  padding-left: 1em;
  margin-bottom: 20px;
}
.product__explain_title {
    border-bottom: 1px solid #1d2f5f;
    margin-bottom: 10px;
    font-weight: bold;
}
.product__explain_wrapper {
  margin-bottom: 20px;
}
.socialbtn {
  margin-top: 30px;
}
.imagebox_md {
  width: auto;
  height:131px;
  border: 5px solid #eee;
  overflow: hidden;
}