body {
    font-family: palatino,georgia,verdana,serif;
    font-size: 14pt;
    color: black;
    background-color: white;
    text-align: center;
}

a {
    text-decoration: none;
    border-bottom: 1px dotted;
    color: black;
}

.hint-button {
    font-style: italic;
    padding: 2em;
}

#current-challenge {
    display: none;
    width: 40em;
    margin: 0 auto;
}

#messages {
    display: none;
}

.challenge {
    display: none;
}