mirror of
https://git.sr.ht/~seirdy/seirdy.one
synced 2024-11-10 00:12:09 +00:00
CSS: compact, preserve active color, size tweak
- Remove unnecessary elements from attribute selectors wherever it improves compression. - Dark theme: prevent active link color from being overridden. - Sort properties/attributes to improve compression ratios. - Bump font size from 109% to 109.375% so the default font size hits 17.5px and we get nice round numbers.
This commit is contained in:
Rohan Kumar
parent
fc8eb8d7a6
commit
5affa6df0b
3 changed files with 93 additions and 65 deletions
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@ -28,14 +28,11 @@
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color: #eee7b2;
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}
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a:active {
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color: #b93;
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}
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a:visited {
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color: #ffdaff;
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}
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/* For users who request less contrast, target ACPA Lc of -85 to -86 */
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@media (prefers-contrast: less) {
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html {
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background-color: #333;
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@ -44,20 +41,33 @@
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/* Small text needs higher contrast. */
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@media not (prefers-contrast: less) {
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sup a:link {
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sup a:link:not(:active) {
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color: #feb;
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}
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sup a:visited {
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color: #ffe5ff;
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sup a:visited:not(:active) {
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color: #ffe6ff;
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}
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}
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/* For users who request more contrast, target ACPA Lc near -96 */
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@media (prefers-contrast: more) {
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html {
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background-color: #111;
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color: #eee;
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}
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a:link {
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color: #feb;
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}
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a:visited {
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color: #ffe6ff;
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}
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}
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/* Specified last so it overrides :visited. I chose this color because
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* it's dimmer, so it's noticeable even without color vision. */
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a:active {
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color: #f83;
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}
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}
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@ -17,6 +17,24 @@
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* microformats2 classnames for IndieWeb parsers, but I don't actually
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* use those for styling.
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*
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* Some pages (e.g. post archives) are really long despite having a
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* small download size. Rather than resort to pagination, I decided to
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* use CSS containment and content-visibility. I test performance on
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* browsers with heavy throttling and no GPU acceleration to ensure that
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* they're gentle on the CPU. For instance, Lighthouse benchmarks my
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* machine's CPU power at 1200-1300 and recommends 2.8-3.0x throttling;
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* I throttle at 12-15x.
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*
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* "content-visibility: auto" implies containment; however, some
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* browsers don't support "content-visibility: auto" but do support the
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* "contain" property. To be consistent across all these browsers, I
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* therefore use both even if it's a bit redundant. Once the latest
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* Safari has supported "content-visibility: auto" for a year or so and
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* it's in the latest version of the Tor Browser (which typically uses
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* whatever the latest Firefox-ESR was a month or two ago), I'll
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* consider removing these redundancies. I'll probably have to wait two
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* years.
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*
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* To keep myself from caring about minute details, I limited myself to
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* only defining spacing in increments of .25em. Pixels are 1px or
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* multiples of 3px. This also improves compression. No more "finding
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@ -54,10 +72,10 @@ html {
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* with minimal adjustment, and makes tap-targets larger.
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* Only do this on screen, since printouts already improve legibility
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* and cost paper + ink.
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* 108.75% is the minimum required to get superscripts to reach 14.5
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* CSS pixels with most default stylesheets. At that size, my dark
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* color palette has sufficient contrast.*/
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font-size: 109%;
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* 109.375% is the minimum required to get text to 17.5 CSS pixels and
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* superscripts past 14.75 px with most default stylesheets. At that
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* size, my dark color palette has sufficient contrast.*/
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font-size: 109.375%;
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/* Aligning to the center with space on both sides prevents accidental
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* link activation on tablets, and is a common practice that users are
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@ -86,8 +104,8 @@ html {
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/* 45em is too wide for long body text.
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* Typically meets SC 1.4.8, plus or minus a few characters. */
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div[itemprop="articleBody"],
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li[itemprop="dataFeedElement"],
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[itemprop="articleBody"],
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[itemprop="dataFeedElement"],
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.narrow {
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margin: auto;
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max-width: 34em;
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@ -105,9 +123,9 @@ html {
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/* Add padding on both sides so that focus outlines don't escape their
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* containers. This will let us enable CSS containment without
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* clipping overflowing elements. */
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padding: 0 .5em;
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margin-top: .25em;
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margin-bottom: .25em;
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padding: 0 .5em;
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}
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/* Align titular h1 with top nav and body text. */
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@ -117,15 +135,15 @@ html {
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/* Archive pages can get long. Allow them to get long without slowing
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* down the browser by using content-visibility. */
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dt,
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footer,
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h2,
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h3,
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aside > a,
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footer,
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dt,
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a[role="doc-backlink"],
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section[role="doc-endnotes"],
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li article,
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summary {
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summary,
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aside > a,
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[role="doc-backlink"],
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[role="doc-endnotes"] {
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content-visibility: auto;
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contain-intrinsic-size: auto 3em;
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}
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@ -146,40 +164,42 @@ html {
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}
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.tall,
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section[role="doc-endnotes"] {
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[role="doc-endnotes"] {
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contain-intrinsic-size: auto 50em;
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}
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/* Full-width elements (e.g. display: block) have known widths, so
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* contain their widths. */
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html,
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body,
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main,
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article,
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body,
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dt,
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h1,
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h2,
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h3,
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html,
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main,
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pre,
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dt,
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summary,
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section[role="doc-endnotes"] {
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[role="doc-endnotes"],
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[role="doc-preface"] {
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contain: inline-size layout paint;
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}
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p,
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figure {
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figure,
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p {
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contain: inline-size layout;
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}
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/* Containment changed spaicng a bit; correct that. */
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article > h2 {
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margin: .25em 0;
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padding: .25em 0;
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}
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/* If we have a list of disclosure widgets, we need some
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/* A11y: If we have a list of disclosure widgets, we need some
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* non-interactive space on the screen that's safe to tap. */
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form,
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details {
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details,
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form {
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contain: inline-size layout;
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margin: .5em 0;
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}
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@ -192,13 +212,13 @@ html {
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* paragraph are section permalinks. */
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input,
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div[itemprop="comment"] dd > a,
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dt > a,
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summary,
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nav[itemprop="breadcrumb"] a,
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nav[itemprop="breadcrumb"] > span,
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aside > a, /* Used for section permalinks */
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li > a {
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dt > a,
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li > a,
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[itemprop="comment"] dd > a,
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[itemprop="breadcrumb"] a,
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[itemprop="breadcrumb"] > span {
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padding: .75em .25em;
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}
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@ -207,8 +227,7 @@ html {
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* Also prevent overlapping outlines on focus */
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/* We've increased the padding for dt > a, but dt without a link
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* should take up as much space. Also: since it got
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* content-visibility: auto previously, give it an intrinsic size. */
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* should take up as much space. */
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dt {
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padding: 1em .5em;
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margin: -.25em 0 -.25em -.5em;
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@ -220,15 +239,15 @@ html {
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padding-bottom: .25em;
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}
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dt > a,
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aside > a {
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aside > a,
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dt > a {
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contain: content;
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margin: -.75em -.25em;
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}
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header > nav,
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a[href="#h1"], /* skip link */
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div[itemprop="comment"] dd > a ,
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[itemprop="comment"] dd > a ,
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footer > nav,
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/* List items with direct hyperlink children should only have one
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* hyperlink. */
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@ -260,15 +279,12 @@ html {
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margin: 0 0 0 -.5em;
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}
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/* align h-feeds in sections; they typically follow articles. */
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a[role="doc-backlink"],
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[role="doc-backlink"],
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section article p {
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margin-left: -.5em;
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}
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/* The nav has to be distant-enough from the top to make room for a
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* skip-link. The breadcrumbs also can't have their focus-outlines
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* overflow while CSS containment is enabled. */
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@ -284,6 +300,7 @@ html {
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padding-top: 0;
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}
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/* Lists of links should have some spacing so tap targets don't overlap. */
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/* stylelint-disable selector-max-compound-selectors -- simplest way to describe link-lists */
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:not(nav) > ul li > a,
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nav:not([itemprop="breadcrumb"]) li,
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@ -293,7 +310,7 @@ html {
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}
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/* Increase backlink tap target size to at least 48x48 */
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a[role="doc-backlink"] {
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[role="doc-backlink"] {
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contain: content;
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display: inline-block;
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padding: .75em .5em;
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@ -311,7 +328,7 @@ html {
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a[href="#h1"]:focus {
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top: 0;
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}
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}
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} /* End of adjustments for screen media type */
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/* Make superscripts a bit easier to tap, and prevent consecutive
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* superscripts from touching. */
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@ -328,7 +345,6 @@ sup {
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line-height: 0;
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}
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/* narrow screens: reduce list indentation, hyphenate nested lists
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* touch screens: lists of links should be easy to tap so give them
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* some spacing (partial SC 2.5.5). There should be non-interactive
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@ -359,20 +375,20 @@ nav ul {
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}
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/* step 2: remove bullets and make elements inline. */
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nav[itemprop="breadcrumb"] ol,
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nav[itemprop="breadcrumb"] li,
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nav[itemprop="breadcrumb"] > span,
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[itemprop="breadcrumb"] ol,
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[itemprop="breadcrumb"] li,
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[itemprop="breadcrumb"] > span,
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nav ul li,
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dt > a {
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display: inline-block;
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}
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nav[itemprop="breadcrumb"] ol {
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[itemprop="breadcrumb"] ol {
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margin: -.25em;
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padding: 0;
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}
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nav[itemprop="breadcrumb"] li:not(:last-of-type)::after {
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[itemprop="breadcrumb"] li:not(:last-of-type)::after {
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content: "→";
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}
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/* narrow screens: we reduce margin for blockquotes a lot, using
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@ -402,8 +418,8 @@ h1 {
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}
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li > a,
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nav[itemprop="breadcrumb"] a,
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nav[itemprop="breadcrumb"] > span {
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[itemprop="breadcrumb"] a,
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[itemprop="breadcrumb"] > span {
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padding: .25em;
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}
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@ -429,6 +445,7 @@ kbd {
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ins,
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[role="note"],
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[role="doc-tip"] {
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contain: content;
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font-style: italic;
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text-decoration: none;
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}
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@ -439,8 +456,8 @@ ins,
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* This does not hold true for figures in somewhat distinct sections; the
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* section should instead get the spacing. A section that constitutes a
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* separate schema.org object would qualify. */
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section[itemprop="mentions"],
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figure {
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figure,
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section[itemprop="mentions"] {
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margin: 1.5em 0;
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}
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@ -462,7 +479,7 @@ samp {
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* I use hidden spans in backlinks to provide ARIA labels.
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* Some ancient browsers don't support input[type="hidden"] */
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[hidden],
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input[type="hidden"] {
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[type="hidden"] {
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display: none;
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}
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@ -476,7 +493,7 @@ input[type="hidden"] {
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* viewport, triggering horizontal scrolling. Allow breaking words in
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* content I don't control (comments, names). For content I do control,
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* I just add soft hyphens to the HTML. */
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div[itemprop="comment"],
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[itemprop="comment"],
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:not(pre) > code,
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:not(pre) > samp,
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span[itemtype="https://schema.org/Person"] {
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@ -517,7 +534,7 @@ summary {
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/* center standalone images; same justification as
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* for centering the body contents. Also makes images easier to see
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* for people holding a device with one hand. */
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div[itemprop="articleBody"] img {
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[itemprop="articleBody"] img {
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display: block;
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height: auto;
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margin: auto;
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@ -585,7 +602,7 @@ form > div > div {
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a:focus,
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summary:focus,
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pre[tabindex]:focus,
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[tabindex="0"]:focus,
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form :focus {
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outline: 3px solid;
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}
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@ -594,7 +611,7 @@ form :focus {
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* Leave it on for elements that are supposed to show focus on click. */
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@supports selector(:focus-visible) {
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a:focus:not(:focus-visible),
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pre[tabindex]:focus:not(:focus-visible) {
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[tabindex="0"]:focus:not(:focus-visible) {
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outline: none;
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}
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}
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@ -7,8 +7,8 @@
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}
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/* Hide screen-only content */
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a[href="#h1"], /* Skip link */
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a[role="doc-backlink"], /* can't navigate back on print. */
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[href="#h1"], /* Skip link */
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[role="doc-backlink"], /* can't navigate back on print. */
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aside:not([role="note"]),
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/* An un-opened summary inside an article has no use in print.
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* Outside an article it's used in my webring list where it has some
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@ -20,6 +20,7 @@
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/* splitting up sections with <hr> is unnecesary if those
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* sections are removed */
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body > hr,
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main[itemprop] > article + hr,
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nav:not([itemprop="breadcrumb"]) a:not([rel="home"]) {
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display: none;
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}
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@ -27,8 +28,8 @@
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/* Print: don't break up self-contained items. */
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figure,
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section[itemprop="mentions"],
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blockquote,
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section[itemprop="mentions"],
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li {
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break-inside: avoid;
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}
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