.fb {
    max-width: 800px;
    font-family: Source Sans Pro, Arial, Helvetica, sans-serif;
}

.fb-class input[type="checkbox"] {
    float: left;
    margin: 4px 5px;
}

.form-submitted {
    font-size:30px;
    color:green
}

.form-submit {
    text-align: center;
}