body {
    background-color: black;
    color: white;
    font-family: monospace;
    font-size: x-large;
    max-width: 800px;
    margin: auto;
}

header , footer {
    text-align: center;
}

hr {
    border: solid 3px white;
}

a {
    color: unset;
    transition: 0.2s;
}

a:hover {
    font-weight: bolder;
}
main {
    margin: 0 15px;
}