.img-responsive.mobile {
  display: none;
}

@media only screen and (max-device-width: 480px) {
  .img-responsive {
    display: none;
  }
  .img-responsive.mobile {
    display: block;
  }
}


@media only screen and (min-device-width: 480px) {
  .img-responsive {
    display: block;
  }
  .img-responsive.mobile {
    display: none;
  }
}