body{
    font-family: "Roboto","Lucida Grande","DejaVu Sans","Bitstream Vera Sans",Verdana,Arial,sans-serif;
}

#result {
    background-color: lightgoldenrodyellow;
    border-radius: 10px;
    padding: 10px;
    width: 50%;
    margin: 20px;
}

#button {
    background-color: lightgreen;
    border-radius: 5px;
    padding: 5px;
    width: 80px;
    text-align: center;
    margin: 20px;
}

#message {
    margin: 20px;
    border: 1px solid #aaa;
    border-radius: 5px;
    padding: 5px;
    width: 50%;
}