/* Enter Your Custom CSS Here */
div.wpcf7-validation-errors {
    border: 2px solid #f7e700;
    background: #f7e700;
    color: #b56e00;
}
div.wpcf7-mail-sent-ok {
    border: 2px solid #398f14;
    background: #398f14;
    color: #ffffff;
}