.invalid-border {
  border: 1px solid #dc3545    !important;
}


.ec {
  height: 640px;
}
.ec.ec-day-grid {
  height: 400px;
}
@media (min-width: 576px) {
  .ec {
    height: 700px;
  }
  .ec.ec-day-grid {
    height: 500px;
  }
}
@media (min-width: 992px) {
  .ec {
    height: 800px;
  }
  .ec.ec-day-grid {
    height: 700px;
  }
}
@media (min-width: 1200px) {
  .ec.ec-day-grid {
    height: 800px;
  }
}