.has-error .help-block {
    color: #a94442;
}
.help-block {
    display: block;
    margin-top: 5px;
    margin-bottom: 10px;
    color: #737373;
    font-size: 14px;
}
.form-group.has-error .form-control {
    border-color: #dd4b39;
    box-shadow: none;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}