body {
    max-width: 650px;
    margin: 40px auto;
    padding: 0 10px;
    font:
        18px/1.5 -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        "Helvetica Neue",
        Arial,
        "Noto Sans",
        sans-serif,
        "Apple Color Emoji",
        "Segoe UI Emoji",
        "Segoe UI Symbol",
        "Noto Color Emoji";
    color: #444;
}

img {
    max-width: 650px;
    aspect-ratio: auto;
}

h1,
h2,
h3 {
    line-height: 1.2;
}

code > .line {
    padding-left: 12px;
}

@media (prefers-color-scheme: dark) {
    body {
        color: #c9d1d9;
        background: #0d1117;
    }
    a:link {
        color: #58a6ff;
    }
    a:visited {
        color: #8e96f0;
    }
}

@media only screen and (min-device-width: 380px) {
    body {
        max-width: 360px;
        margin: 20px auto;
    }

    img {
        max-width: 360px;
        aspect-ratio: auto;
    }

    code {
        font-size: 12px;
    }
}

@media only screen and (min-device-width: 650px) {
    body {
        max-width: 650px;
        margin: 40px auto;
    }

    img {
        max-width: 650px;
        aspect-ratio: auto;
    }

    code {
        font-size: 14px;
    }
}

@media only screen and (min-device-width: 1024px) {
    body {
        max-width: 1024px;
        margin: 40px auto;
    }

    img {
        max-width: 1024px;
        aspect-ratio: auto;
    }

    code {
        font-size: 16px;
    }
}

blockquote {
    border-left: 2px solid black;
    padding-left: 8px;
    margin-left: 16px;
}