HtmGem/htmgem.css

html {
    font-family: sans-serif;
    font-size:1rem;
    color:#1E4147;
    background-color:#fafafa;
}

body {
    max-width: 1024px;
    margin: auto;
}

ul {
    margin: 0.4rem 0;
    padding: 0;
}

p, pre {
    margin: 0 0 0.3rem;
    padding: 0;
}

p {
    text-align: justify;
    text-justify: inter-word;
}

li {
    margin: 0;
    padding: 0;
}

h1,h2,h3 {
    line-height:1.2;
    color: #66f;
    margin: 0;
    padding: 0;
}

blockquote {
    background-color: #eee;
    border-left: 3px solid #444;
    margin: 1rem -1rem 1rem calc(-1rem - 3px);
    padding: 1rem;
}

a {
    margin: -1.35rem;
    color:#820;
    text-decoration: none;
    text-justify: none;
}

a:before {
    content: "🔗 ";
}

a:visited {
    color: #868;
}

pre {
    background-color: #eee;
    margin: 0 -1rem;
    padding: 1rem;
    overflow-x: auto;
}

@media only screen and (max-width: 1024px) {
    a {
        margin: -4rem;
    }
    body {
        margin: 3rem;
    }
    h1 {
        font-size: 4rem;
    }
    h2 {
        font-size: 3.5rem;
    }
    h3 {
        font-size: 3rem;
    }
    p, pre, ul {
        font-size: 2.6rem;
    }
}

@media(prefers-color-scheme:dark) {
    html {
        background-color: #111;
        color: #eee;
    }

    blockquote {
        background-color: #000;
    }

    pre {
        background-color: #222;
    }
    
    a {
        color: #0087BD;
    }

    a:visited {
        color: #802200;
    }
}