.ro_dialog {
    visibility: hidden;
    background-color: #9ae;
    border-radius: 0.5em;
    border: 0.1em solid #448;
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    padding: 0.5em 1em;
    z-index: 1;
    text-align: center;
}

.ro_dialog>button {
    background-color: #ddf;
    font-size: 1em;
    border-radius: 0.5em;
    border: 0.1em solid #359;
    margin: 1em 0.5em 0em;
    padding: 0.2em 0.5em;
    text-align: center;
    cursor: pointer;
}

/*
#id_confrmdiv .button:hover {
    background-color: #ddd;
}
*/
/*
#confirmdiv .message {
    text-align: left;
    margin-bottom: 8px;
}
*/