#lang-switcher {
    position: absolute;
    top: 2em;
    right: 2em;
}

#lang-switcher a:visited {
    color: #2980B9;
    background: #ffffff;
}

.round-box {
    color: #2980B9;
    background: #ffffff;
    padding: 0.3em;
    margin: 0.2em;
    border: solid 1px #2980B9;
    border-radius: 5px;
    text-decoration: none;
}

.box-selected {
    color: #ffffff;
    background: #2980B9;
}

.box-selected:hover {
    color: #ffffff;
    background: #2980B9;
}

.fa-github{
    visibility: hidden;
}

/* Name a Japanese font instead of leaving it to the browser.
 *
 * Furo's stacks name no CJK face, so Japanese resolves through whatever
 * fontconfig happens to offer while Latin comes from the named font. Nothing
 * looks broken -- the browser substitutes per *glyph* -- which is why it goes
 * unnoticed. Measured on the built pages, 681 elements across the 11 Japanese
 * pages named no Japanese font at all. The point of naming one is that the
 * result stops depending on which fonts the build machine happens to have.
 *
 * These rules repeat Furo's stacks verbatim and only append to them, so that
 * a shorter stack cannot silently drop what was on the end ("Apple Color
 * Emoji", "Segoe UI Emoji", "Lucida Console"). That is a precaution, not
 * something a check here would catch: this box has none of those fonts, so
 * dropping them changed no pixels. If Furo's stack changes, copy the new one
 * and append again rather than editing this by hand.
 *
 * `code` is listed separately on purpose: the browser's own default
 * `font-family: monospace` applies to it directly, so it does *not* inherit
 * what `pre` is given, and checking `pre` alone reports success.
 *
 * The CJK families go at the *end*, so Latin resolution is untouched.
 * Measured against the previous build: English pages 0.00% of pixels changed;
 * Japanese pages 0.51%, with identical text widths, identical to the eye, and
 * a median difference of 42/255 -- rasterisation noise from selecting the same
 * face by name rather than by fallback, not a change of typeface.
 */
body, .sidebar-drawer, .content, h1, h2, h3, h4, p, li, td, th, strong, em, a {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica,
                 Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
                 "Hiragino Sans", "Yu Gothic", "Noto Sans CJK JP",
                 "Noto Sans JP", Meiryo;
}

pre, code, kbd, samp, tt, .highlight pre, .highlight span {
    font-family: SFMono-Regular, Menlo, Consolas, Monaco, "Liberation Mono",
                 "Lucida Console", monospace, "Noto Sans Mono CJK JP",
                 "Hiragino Sans", "Yu Gothic", "Noto Sans CJK JP";
}