h1 {
    text-align: center;
    margin: 30px 0;
}
h1 a {
    text-decoration: none;
}
h1 a:hover {
    text-decoration: underline;
}

label {
    display: inline-block;
    width: 150px;
}

.back {
    display: block;
    text-decoration: none;
    color: green;
}

select {
    font-size: 18px;
}