input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.input-group > input {
  height: 32px;
  width: 100%;
  border: 1px solid #cccccc;
  padding-left: 10px;
}
.grupoNumeroSerie form {
  width: 200px;
  float: left;
  margin-right: 10px;
}