body {
    font-family: Arial, sans-serif;
    min-height: 100vh;
    margin: 0;

    display: flex;
    justify-content: center;
    align-items: center;

    text-align: center;
}

main {
    max-width: 600px;
    padding: 20px;
}

h1 {
    font-size: 42px;
}