.box-fanshop {
  margin-top: 10px;
  border: 1px solid #ddd;
  background-color: #fff;
  width: 100%;
  height: 267px; }
  @media only screen and (max-width: 767px) {
    .box-fanshop {
      height: calc((100vw - 10px) * 0.7959); } }