#choices button{
    margin: 5px;
    padding: 10px;
}
#answer{
    margin-top: 15px;
}

body{
    font-family:sans-serf;
    background-color: #f5f5f5;
    padding: 2rem;
}
#question{
    background-color: #fff;
    border: 1px solid #ccc;
    padding: 1em;
    margin-bottom: 1em;
    white-space: pre-wrap;
    font-family: monospace;
    font-size: 1em;
}
input{
    margin: 0.5em;
    padding: 0.3em;
    width: 4em;
    font-family: monospace;
}
button{
    padding: 0.5em 1em;
}
#result{
    margin-top:1em;
    font-weight: bold;
}