style.css

body {
    color: #333;
    font-family: georgia, serif;
    font-size: large;
    line-height: 1.5;
    margin: 0 auto;
    max-width: 40em;
    padding: 0 1em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 1.25em 0 0.25em 0;
    line-height: 1.2;
}

h1+div {
    margin: 0.5em 0;
}

a:link {
    color: #00e;
}

a:visited {
    color: #518;
}

a:focus,
a:hover {
    color: #03f;
}

a:active {
    color: #e00;
}

a:empty:before {
    content: "#";
}

a:empty {
    visibility: hidden;
    padding-left: 0.25em;
}

:hover>a:empty {
    visibility: visible;
}

blockquote,
pre,
kbd,
.highlight {
    background: #eee;
}

blockquote {
    border-left: thick solid #ccc;
    margin: 1em 0;
}

pre {
    overflow: auto;
}

blockquote,
pre,
.highlight {
    padding: 0.5em;
}

blockquote *:first-child,
.highlight *:first-child {
    margin-top: 0;
}

blockquote *:last-child,
.highlight *:last-child {
    margin-bottom: 0;
}

pre,
code,
samp,
kbd,
.mono {
    font-family: monospace, monospace;
    font-size: 0.9em;
}

pre code,
pre samp,
pre kbd,
.mono kbd {
    font-size: 1.0em;
}

code,
samp kbd {
    color: #050;
}

samp {
    color: #730;
}

pre .cursor {
    background: #730;
    color: #eee;
}

pre .hl {
    color: #800;
}

kbd {
    border: thin solid #ccc;
    box-shadow: 0 0.15em 0.15em #ccc;
    border-radius: 0.2em;
    padding: 0.1em 0.2em;
}

samp kbd {
    border: none;
    box-shadow: none;
    padding: 0;
}

ul.blog {
    margin-top: 1.5em;
    list-style-type: none;
    padding: 0;
}

ul.blog li {
    margin: 1em 0;
}

hr {
    margin: 1.5em auto;
    border: 0;
    border-bottom: 0.15em dotted #999;
}

footer {
    text-align: center;
}

nav a {
    margin-right: 1.5em;
    line-height: 2.5;
}

nav a:last-child {
    margin-right: 0;
}

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

    a:link {
        color: #9bf;
    }

    a:visited {
        color: #a9f;
    }

    a:focus,
    a:hover {
        color: #9cf;
    }

    a:active {
        color: #f99;
    }

    blockquote,
    pre,
    kbd,
    .highlight {
        background: #000;
        box-shadow: 0 0 0.5em #333;
    }

    blockquote {
        border-left-color: #333;
    }

    code,
    pre kbd {
        color: #9c6;
    }

    samp {
        color: #db0;
    }

    pre .cursor {
        background: #db0;
        color: #000;
    }

    pre .hl {
        color: #fa6;
    }

    kbd {
        border-color: #333;
        box-shadow: 0 0.15em 0.15em #333;
    }

    hr {
        border-bottom-color: #666;
    }
}