/* Extra small devices (phones, 600px and down) */
@media only screen and (max-width: 600px) {
  .desktop{
    display: none;
  }
  .mobile{
    min-width: 320px;
  }
}

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (min-width: 601px) {
  /* CSS rules here */
  .desktop{
    display: none;
  }
  .mobile{
    min-width: 320px;
  }
}

/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (min-width: 768px) {
  /* CSS rules here */
  .desktop{
    display: none;
  }
  .mobile{
    min-width: 320px;
  }
}