body {
    display: flex;
    justify-content: center;
}

main {
    padding: 10px;
    background-color: white;
    border: 3px solid rgb(0, 0, 0);
    max-height: 90vh;
    max-width: 450px;
    overflow-x: scroll;
}

h2 {
    margin: 10px;
}

p {
    margin: 10px;
}