monitor-dashboard/src/assets/dashboard-theme/input.css

.uk-form-label, .input-box .mat-select {
  font-size: var(--font-size);
}
/* Chrome, Safari, Edge, Opera */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Firefox */
input[type=number] {
  -moz-appearance: textfield;
}