body{
    font-family: 'Courier New', Courier, monospace;
    background-color: lightcyan;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 10px;
    padding-right: 10px;
}

.successMessage {
    background-color: lightgreen; width: 400px; padding: 20px; box-shadow: 4px 4px darkgrey;
}

.errorMessage {background-color: tomato; color: white; width: 400px; padding: 20px; box-shadow: 4px 4px darkgrey;}

.shadowed {box-shadow: 4px 4px darkgrey;}