.u-imgAdjustBox {
  position: relative;
  width: 100%;
  height: auto;
  background: #fafafa;
}
.u-imgAdjustBox::before {
  content: "";
  display: block;
}

.u-imgAdjustBox_inner {
  display: flex;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.u-imgAdjustBox_item {
  width: 100%;
}