.box {
  width: 100%;
  display: table;
}
.box .box__cell {
  vertical-align: middle;
}

@media screen and (max-width: 768px) {
  .box {
    width: 100%;
    display: table;
  }
  .box .box__cell:nth-child(odd) {
    border-bottom: none;
  }
}