@media (min-width: 300px) {
  #custom-slider {
    height: 200px;
  }
}

@media (min-width: 576px) {
  #custom-slider {
    height: 300px;
  }
}

@media (min-width: 768px) {
  #custom-slider {
    height: 380px;
  }
}

@media (min-width: 992px) {
  #custom-slider {
    height: 400px;
  }
}

@media (min-width: 1200px) {
  #custom-slider {
    height: 600px;
  }
}