.demo.red{
    background-color: #FF0000;
}
.demo.green{
    background-color: #00FF00;
}
.demo.blue{
    background-color: 0000FF;
}

table.Q1
{
    horizontal-align: center;
    width: 90%;
    font-style: italic;
    font-size: 12px;
    background-color: GhostWhite;
    border: 3px Gainsboro groove;
    padding: 2 2 2 2
}