.arterias-birthdate-help {
    display: block;
    width: 100%;
    margin-top: 6px;
    color: #5f6670;
    font-size: 13px;
    line-height: 1.4;
    font-weight: 400;
}

@media (max-width: 767px) {
    .arterias-birthdate-help {
        font-size: 12px;
    }
}