html,
body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

html {
    color: #000;
    background-color: #fff;
}

@media (prefers-color-scheme:dark) {
    html {
        color: #fff;
        background-color: #000;
    }
}

html,
body {
    padding: 0;
    margin: 0;
}