@media screen and (max-width: 576px) {
  .desk-div
  {
    display: none;
  }
  .mob-div
  {
    display: block;
  }
}

@media screen and (min-width: 576px) {
  .desk-div
  {
    display: block;
  }
  .mob-div
  {
    display: none;
  }
}