span.error{
    color: #dc3232 !important;
    padding-left: 5px;
    font-weight: normal;
}
.response{
    padding: 10px;
}
.insert-success{
    color: #000;
    text-align: center;
    border: 2px solid #3a9c42;
    padding: 10px;
}
.insert-error{
    color: #000;
    text-align: center;
    border: 2px solid #e6a037;
    padding: 8px;
}
button:disabled {
    background-color: #ccc; 
    color: #777;            
    cursor: not-allowed;
    opacity: 0.6;
}