.px-rf-field-error {
    display: block;
    margin-top: 6px;
    color: #b4233f;
    font-size: 11px;
    font-weight: 700;
    line-height: 1.45;
}
input.px-rf-invalid,
select.px-rf-invalid,
textarea.px-rf-invalid {
    border-color: #c6405a !important;
    box-shadow: 0 0 0 3px rgba(198, 64, 90, .10) !important;
    outline: 0 !important;
}
input[type="checkbox"].px-rf-invalid,
input[type="radio"].px-rf-invalid {
    outline: 2px solid rgba(198, 64, 90, .48) !important;
    outline-offset: 3px !important;
}