.sz-cf7-validation-tip {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    line-height: 1.35;
}

input.sz-cf7-invalid,
input.wpcf7-not-valid.sz-cf7-invalid {
    border-color: #d63638 !important;
    box-shadow: 0 0 0 1px rgba(214, 54, 56, 0.08);
}