@media only screen and (max-width: 768px) {
    /*form mobile*/
    .topbar{
      display:block;
      background-color: #f4f5f7;
      height:40pt;
    }
  }
@media only screen and (min-width: 768px) {
    /*form desktop*/
    .topbar{
      display:none;
    }
  }