.empty-message,
.error-message {
    position: absolute;
    right: 3px;
    top: 5px;
    color: #191919;
    font-weight: normal;
    height: 0;
    overflow: hidden;
    font-size: 10px;
    -webkit-transition: 0.3s ease-in height;
    transition: 0.3s ease-in height;
    z-index: 99;
}
.invalid .error-message,
.empty .empty-message {
    height: 20px;
    color: #F00;
}
.contactForm2 .empty-message,
.contactForm2 .error-message {
    top: 9px;
}