#btcounter {
  font-size: 0.9em;
  width: 18vw;
  min-width: 200px;
  height: 220px;
  text-align: center;
}

@media screen and (max-width: 850px) {
    #btcounter {
        display: none;
    }
}
@media screen and (max-height: 600px) {
    #btcounter {
        display: none;
    }
}