@media (max-width: 480px) {
    .header {
        margin-left: auto;
        margin-right: auto;
        display: block;
        margin-top: 1em;
        margin-bottom: 2em;
        width: 90%;
    }
}

@media (min-width: 481px) {
    .header {
        margin-left: auto;
        margin-right: auto;
        display: block;
        margin-top: 1em;
        margin-bottom: 2em;
    }
}


body {
    margin-left: 2em;
    margin-right: 2em;
    font-size: 16pt;
}

h1 {
    font-family: "Courier New", Courier, monospace;
    font-size: 1.2em;
}