main {
    margin-top: 150px;
    display: flex;
    flex-direction: column;

    max-width: 60em;
    margin-left: auto;
    margin-right: auto;
}

article {
    display: flex;
    flex-direction: column;

    max-width: 60em;
    margin-left: auto;
    margin-right: auto;
}