form {
    margin: 30px;
}
h2 {
    margin-top: 50px;
}
h3 {
    color: #333;
}
label {
    font-weight: bold;
    display: block;
    margin-bottom: 10px;
    width: 500px;
}
label input {
    width: 300px;
    float: right;
}
label input.radio {
    width: auto;
    float: none;
}
input[type=submit] {
    margin: 16px 0;
    font-weight: bold;
    font-size: 120%;
}
div.error {
    border: 2px solid #F00;
    padding: 8px;
    margin: 16px 0;
}