@media screen and (max-width: 700px) {
    .myclass222{
      display:none;
    }
}
@media screen and (min-width: 700px) {
  .myclass3432{
    display:none;
  }
}
@media screen and (max-width: 700px) {
  .myclass3432b{
    display:none;
  }
}