form {
    background: #77C0E3;
    padding: 20px;
    border-radius: 5px;
    width: 50%;
    margin: 0 auto;
}
form h2 {
    color: #3c7727;
    font-size: 28px;
    margin: 0 0 20px 0;
}
form input, form label {
    display: block;
    font-size: 16px;
}
input[type="submit"] {
    background: grey;
    border: none;
    padding: 10px 20px;
    color: #fff;
    border-radius: 5px;
    cursor: pointer;
}