1
0
Fork 0
mirror of https://git.sr.ht/~seirdy/seirdy.one synced 2024-12-17 22:32:10 +00:00
seirdy.one/assets/css/main.css
Rohan Kumar ef10703db7
Use the default font-size
Now that more mobile browsers support text zoom, I don't need to worry
about font size as much. Moreover, iOS and Android support a zoomed mode
that makes all tap targets and text larger. This mode made my site's
larger text uncomfortably larger than other sites. On Android, this is
the "Display size" setting; on iOS, this is the "display zoom" setting
under "Display and Brightness" section.

This commit switches everything back to the browser's default font
sizes to better accomodate non-default zoom levels and display zoom
settings.
2023-05-24 14:07:35 -07:00

682 lines
18 KiB
CSS

/* CSS that adds the bare minimum for a simple, accessible,
* touch-friendly layout.
* Nothing here exists purely for cosmetics; everything addresses a
* specific a11y, compatibility, or critical
* usability need.
*
* Three exceptions:
* - I re-set the input styles so Safari wouldn't make them pill-shaped
* - I tweaked some margins/paddings to make some things evenly aligned
* - I made my IndieWeb profile photo align without an underline
* on the whitespace between the photo and my name.
*
* I also don't use any non-microformats classes except when styling
* depends on *content* of an element rather than structure/semantics.
* Examples include images that look better with pixelated upscaling,
* and posts on the list of entries in the "notes" section that are tall
* and need a larger contain-intrinsic-size.
* One exception: a class for narrow width body text.
*
* Some pages (e.g. post archives) are really long despite having a
* small download size. Rather than resort to pagination, I decided to
* use CSS containment and content-visibility. I test performance on
* browsers with heavy throttling and no GPU acceleration to ensure that
* they're gentle on the CPU. For instance, Lighthouse benchmarks my
* machine's CPU power at 1200-1300 and recommends 2.8-3.0x throttling;
* I throttle at 12-15x.
*
* "content-visibility: auto" implies containment; however, some
* browsers don't support "content-visibility: auto" but do support the
* "contain" property. To be consistent across all these browsers, I
* therefore use both even if it's a bit redundant. Once the latest
* Safari has supported "content-visibility: auto" for a year or so and
* it's in the latest version of the Tor Browser (which typically uses
* whatever the latest Firefox-ESR was a month or two ago), I'll
* consider removing these redundancies. I'll probably have to wait two
* years.
*
* To keep myself from caring about minute details, I limited myself to
* only defining spacing in increments of .25em. Pixels are 1px or
* multiples of 3px. This also improves compression. No more "finding
* the perfect value".
*
* I cite WCAG 2.2 success criteria with "SC". I also tried to meet
* the Google a11y requirement of 48px tap targets separated by atl
* 8px, excluding inline links. This involved increasing font size,
* padding, line-height, and margins. */
html {
/* Mobile screens benefit from greater line-spacing so links are
* further apart. Dyslexic users prefer the spacing too.
* Necessary to meet SC 1.4.8.
* <100dpi screens: sans-serif is better. Why did browsers settle
* on serif being the default?? */
font: 100%/1.5 sans-serif;
/* Nearly every page on my site is taller than the viewport.
* Paint the scrollbar ASAP to prevent layout shifts. */
overflow-y: scroll;
/* Site is already mobile optimized.
* Don't screw up landscape mode. */
-webkit-text-size-adjust: none;
text-size-adjust: none;
}
/* This should not take effect on printouts, to save paper. */
@media screen {
body {
/* Aligning to the center with space on both sides prevents accidental
* link activation on tablets, and is a common practice that users are
* more used to for articles. */
margin: auto;
/* WCAG recommends a max line width. Not everyone can resize the
* viewport. This isn't for large blocks of text yet, so we don't have
* to go by SC 1.4.8.
* 40em = lowest acceptable width for titles, nav, footers, etc */
max-width: 40em;
/* Phone cases can cover the edges. Swipe-from-edge navigations
* should not conflict with the page elements. Focus outlines for
* heavily-padded nav links should not be cut-off. All three concerns
* are addressed by adding some body padding.
* I followed Google's a11y recommendations of "at least 8px space
* between tappables" by creating margins/paddings between nav links;
* re-use that same amount of space here. 24px is what it takes to
* create atl 48px of non-interactive space on <ul> and <ol> elements
* containing lists of interactives, with 8px in between.
* Don't use relative units here; this margin shouldn't scale with
* zoom, or else text will get narrower with zoom. */
padding: 0 14px;
}
/* 45em is too wide for long body text.
* Typically meets SC 1.4.8, plus or minus a few characters. */
.e-content,
[itemprop="dataFeedElement"],
.narrow {
margin: auto;
max-width: 34em;
}
/* Enable containment, especially useful for achive pages with
* long lists of content. */
body > :not(main),
main > :not(article),
li article, /* Archive pages */
/* We increase the target size of h2/h3 links in a way that would cause
* issues with content containment */
article > :not(h2):not(h3) {
contain: inline-size layout paint;
/* Add padding on both sides so that focus outlines don't escape their
* containers. This will let us enable CSS containment without
* clipping overflowing elements. */
padding: 0 .5em;
}
/* Align titular h1 with top nav and body text. */
main > h1 {
padding-left: .25em
}
/* Breadcrumbs get a lot of padding, making the hr margin redundant
* Due to containment, the wide blurb at the top of non-article pages
* has a huge padding on the bottom. This actually works for archive
* pages but not for the main page. */
article > hr,
body > hr,
main > hr {
margin: 0 .5em;
}
/* containment has increased spacing of the first paragraph of h-feed
* entries; offset that. */
li .p-name + p,
header hr {
margin-bottom: 0;
}
h1 {
margin: 0 0 .25em;
}
/* Archive pages can get long. Allow them to get long without slowing
* down the browser by using content-visibility. */
dt,
footer,
h2,
h3,
li article,
summary,
[role="doc-backlink"],
[role="doc-endnotes"] {
content-visibility: auto;
contain-intrinsic-size: auto 3em;
}
dt,
h3 {
contain-intrinsic-size: 1.5em;
}
footer,
li article {
contain-intrinsic-size: auto 16em;
}
/* Notes can get a bit long. */
li article[itemtype="https://schema.org/SocialMediaPosting"] {
contain-intrinsic-size: auto 36em;
}
.tall,
[role="doc-endnotes"] {
contain-intrinsic-size: auto 50em;
}
/* Full-width elements (e.g. display: block) have known widths, so
* contain their widths. */
article,
body,
dt,
dd,
h1,
h2,
h3,
html,
main,
pre,
summary,
dl > div,
:not(nav) > ol,
[role="doc-endnotes"],
[role="doc-preface"] {
contain: inline-size layout paint;
}
figure,
:not(li) > p {
contain: inline-size layout;
}
/* Containment changed spaicng a bit; correct that. */
article > h2 {
margin: .25em 0;
padding: .25em 0;
}
/* A11y: If we have a list of disclosure widgets, we need some
* non-interactive space on the screen that's safe to tap. */
details,
fieldset,
form {
contain: inline-size layout;
margin: .5em 0;
}
/* SC 2.5.5, Google a11y: Increase tap target size a bit
* - Summary is a tappable button
* - standalone links in lists are usually parts of collections of
* links that should be easy to fat-finger
* - links that directly follow h2 without being contained in a
* paragraph are section permalinks. */
/* stylelint-disable selector-max-compound-selectors -- simplest way to describe link-lists */
input,
summary,
aside > a, /* Used for section permalinks */
dt > a,
:not(h1) + ul > li > a,
ol > li > a,
nav li > a,
.u-comment dd > a,
[itemprop="breadcrumb"] a,
[itemprop="breadcrumb"] > span {
/* stylelint-enable selector-max-compound-selectors */
padding: .75em .25em;
}
/* Compensate for misalignment and wasted space caused by padding
* and margin adjustments in nav children made to meet SC 2.5.5
* Also prevent overlapping outlines on focus */
/* We've increased the padding for dt > a, but dt without a link
* should take up as much space. */
dt {
padding: 1em .5em;
margin: -.25em 0 -.25em -.5em;
}
/* <dt> should not be closer to the previous <dd> than the following <dd>.
* That can happen in webmentions.
* Give <dd> some padding to the right as well, so webmentions
* receiving paint containment don't get clipped. */
dd {
margin: 0;
padding: .25em .25em .5em 1.75em;
contain: inline-size layout paint;
}
aside > a,
dt > a {
contain: content;
margin: -.75em -.25em;
}
h2 + aside[role="none"] {
contain: strict;
content-visibility: auto;
height: 1.75em;
margin: -1em -.5em;
padding: 1em .5em;
}
header > nav,
a[href="#h1"], /* skip link */
.u-comment dd > a ,
footer > nav,
/* List items with direct hyperlink children should only have one
* hyperlink. */
li > a,
aside > a,
nav ol a {
display: inline-block;
margin-left: -.25em;
}
/* stylelint-disable selector-max-compound-selectors -- simplest way to target post-meta */
h1 + ul > li > a {
margin-left: 0;
}
/* stylelint-enable selector-max-compound-selectors */
/* Increase tap-target size of title links. */
h2 > a {
contain: content;
display: inline-block;
/* Mis-alignment, I have no clue why it's there. */
margin: 0 .125em;
padding: .25em;
}
h3 > a {
contain: content;
display: inline-block;
padding: .5em .25em;
}
article > h3 {
padding: .25em;
margin: 0 0 0 -.5em;
}
/* align h-feeds in sections; they typically follow articles. */
[role="doc-backlink"],
section article p {
margin-left: -.5em;
}
/* The nav has to be distant-enough from the top to make room for a
* skip-link. The breadcrumbs also can't have their focus-outlines
* overflow while CSS containment is enabled. */
header > nav {
padding: .75em 0 .25em;
}
/* Multiple consecutive <dt> that share a <dd> shouldn't have tap targets overlap.
* Due to containment: we need to ensure enough padding to avoid
* overflow but then un-do the padding with a margin. */
dt + dt {
padding-top: .75em;
margin-top: -.75em;
}
dt + dt > a {
padding-top: 0;
}
/* Lists of links should have some spacing so tap targets don't overlap. */
/* stylelint-disable selector-max-compound-selectors -- simplest way to describe link-lists */
:not(nav) > :not(h1) + ul li > a,
nav:not([itemprop="breadcrumb"]) li,
ol li > a {
/* stylelint-enable selector-max-compound-selectors */
margin: .25em;
}
/* Increase backlink tap target size to at least 48x48 */
[role="doc-backlink"] {
contain: content;
display: inline-block;
padding: .75em .5em;
margin-top: -1em;
}
/* skip link: make it invisible until focused, and put it on the top. */
a[href="#h1"] {
contain: content;
content-visibility: auto;
padding: 0 .25em;
position: absolute;
top: -2em;
}
a[href="#h1"]:focus {
top: 0;
}
} /* End of adjustments for screen media type */
/* Make superscripts a bit easier to tap, and prevent consecutive
* superscripts from touching. */
sup > a {
margin-left: .25em;
padding-bottom: .5em;
}
/* Make superscript font size a bit larger so they cross some APCA color
* contrast thresholds on the dark theme. Also prevent them from messing
* with line-height. */
sup {
font-size: 0.85em;
line-height: 0;
}
/* narrow screens: reduce list indentation, hyphenate nested lists
* touch screens: lists of links should be easy to tap so give them
* some spacing (partial SC 2.5.5). There should be non-interactive
* space to the left that's safe to tap.
* 1.75em is the minimum required for ol numbers to fit. */
ol,
ul,
li h2 + ul {
padding-left: 1.75em;
}
blockquote,
ol ol,
ul ul {
-webkit-hyphens: auto;
hyphens: auto;
margin: 0;
padding-left: 1.25em;
}
/* Save some space and paper by making the site nav and footer links
* single-line without bullets. The title should be visible in the fold
* on most screens so users can identify the current page. */
/* Step 1 to making the single-line nav: remove the bullet padding. */
nav ul {
margin: 0;
padding: 0;
}
/* step 2: remove bullets and make elements inline. */
[itemprop="breadcrumb"] ol,
[itemprop="breadcrumb"] li,
[itemprop="breadcrumb"] > span,
nav ul li,
dt > a {
display: inline-block;
}
[itemprop="breadcrumb"] ol {
margin: -.25em;
padding: 0;
}
[itemprop="breadcrumb"] li:not(:last-of-type)::after {
content: "→";
}
/* narrow screens: we reduce margin for blockquotes a lot, using
* a border instead. */
blockquote {
border-left: 3px solid;
}
/* Narrow screens: allow hyphenating titles I can't add soft hyphens to
* these. Also decrease the top margin a bit; the navbar and breadcrumb
* list take up plenty of space on top. The latter is a purely
* aesthetic choice, since it was annoying me a lot. */
h1 {
-webkit-hyphens: auto;
hyphens: auto;
}
/* Very narrow screens: full hyphenation, compactness
* This is the typical width of a smart feature phone, or a browser
* sidebar. At this tiny width, users are either unlikely to be using a
* touchscreen (KaiOS-like feature phones, desktop browser sidebars) or
* they're just reading non-interactively. being compact probably takes
* precedence over being touch-friendly. */
@media (max-width: 272px) {
body {
-webkit-hyphens: auto;
hyphens: auto;
padding: 0 8px;
}
li > a,
[itemprop="breadcrumb"] a,
[itemprop="breadcrumb"] > span {
padding: .25em;
}
dd {
padding-left: 1em;
}
hr {
margin: .25em 0;
}
/* This will line-wrap and take more vertical space; strict containment
* won't work. */
h2 + aside[role="none"] {
contain: inline-size layout paint;
}
}
/* <kbd> should be distinguished from <code> and surrounding text
* in a way beyond font-face; at least two visual distinctions needed
* I set the weight here. */
kbd {
font-weight: bold;
}
/* <ins> should not be mistaken for hyperlinks.
* "note" roles should look distinct. */
ins,
[role="note"],
[role="doc-tip"] {
contain: content;
font-style: italic;
text-decoration: none;
}
/* narrow screens: remove unused figure margins
* figure captions shouldn't look like regular paragraphs; there should
* be some extra space.
* This does not hold true for figures in somewhat distinct sections; the
* section should instead get the spacing. A section that constitutes a
* separate schema.org object would qualify. */
figure,
section[itemprop="mentions"] {
margin: 1.5em 0;
}
section[itemprop="mentions"] > figure {
margin: 0;
}
/* browsers make monospace small and unreadable for some dumb legacy
* reason and this somehow fixes that without overriding the user's
* font size preferences. */
code,
kbd,
pre, /* Needed for ancient browsers */
samp {
font-family: monospace, monospace;
}
/* Some browsers don't support the hidden attr.
* I use hidden spans in backlinks to provide ARIA labels.
* Some ancient browsers don't support input[type="hidden"] */
[hidden],
[type="hidden"] {
display: none;
}
/* Remove list style from data feeds. */
.h-feed > ol {
list-style-type: none;
margin: 0;
padding: 0;
}
/* Narrow screens: long words can cause content to flow out of the
* viewport, triggering horizontal scrolling. Allow breaking words in
* content I don't control (comments, names). For content I do control,
* I just add soft hyphens to the HTML. */
.u-comment,
:not(pre) > code,
:not(pre) > samp,
span[itemtype="https://schema.org/Person"] {
overflow-wrap: break-word;
}
/* Narrow screens: allow horizontal scroll in a pre block. */
pre {
overflow: auto;
padding: .5em;
}
/* Distinguish images from the background in case their color is
* too similar to the page background color. Also put a border around
* <pre> and <code> to distinguish them in ways besides font-family.
* The tappable region of a <summary> extends across the page: we
* need to tell users that the full space is interactive.
* This is Technique C25 of SC 1.4.8 */
input,
img,
mark, /* borders provide a distinguishing factor besides color */
pre,
summary {
border: 1px solid;
}
/* A black border is too harsh; the extra visual noise is distracting
* to users with eye-tracking or ADHD. Only special items like headings
* should draw gaze. */
:not(pre) > code,
:not(pre) > samp {
border: 1px solid #999;
/* borders shouldn't touch text */
padding: 0 .25em;
}
/* center standalone images; same justification as
* for centering the body contents. Also makes images easier to see
* for people holding a device with one hand. */
.e-content img {
display: block;
height: auto;
margin: auto;
max-width: 100%;
}
.h-card .u-photo {
height: 1em;
width: 1em;
vertical-align: -.1em;
}
.p-author a.u-uid {
text-decoration: none;
}
a .u-photo + .p-name {
text-decoration: underline;
}
/* Stretch out audio elements so the progress meter is easier to use. */
audio {
width: 100%;
}
/* Some images look blurry when scaled; this makes them easier to
* read. */
.pix {
image-rendering: pixelated;
}
/* Make search box and submit button as wide as possible while keeping
* them next to each other. */
/* Use table-style layout (no, not actual tables. eww.). It's like a
* single-row flexbox that supports more browsers. Kanged this CSS from
* ww.gov.uk. Give the entire width of the row to the search box, but
* allow the minimum width for the submit button. */
legend, /* Makes the <legend> wrap text in some browsers. */
form > div {
display: table;
width: 100%
}
input {
/* Browsers like Safari make the submit button pill-shaped which
* clashes with the input box. One of the only purely-cosmetic changes
* on this site. */
appearance: none;
/* Don't shrink the size of the text in forms or make it system-ui. */
font-family: sans-serif;
font-size: inherit;
}
/* A text box should take all available width */
input:not([type="submit"]) {
display: table-cell;
width: 98%;
}
/* Pseudo-table-cell containing the submit button */
form > div > div {
display: table-cell;
vertical-align: top; /* IE and some botique browsers need this */
width: 1%;
}
/* Some browser focus indicators are inaccessible; override them with
* something more visible. See WCAG 2.x SC 2.4.12. I also tried to
* match browser behavior; mainstream browsers use :focus-visible
* instead of focus but older/simpler browsers only support :focus.
* I borrowed these directives from
* https://www.tempertemper.net/blog/refining-focus-styles-with-focus-visible
* To my knowledge: <a>, <summary>, and <pre tabindex=0> are the only
* focusable elements.
* */
a:focus,
summary:focus,
[tabindex="0"]:focus,
form :focus {
outline: 3px solid;
}
/* Remove :focus styling for browsers that do support :focus-visible.
* Leave it on for elements that are supposed to show focus on click. */
@supports selector(:focus-visible) {
a:focus:not(:focus-visible),
[tabindex="0"]:focus:not(:focus-visible) {
outline: none;
}
}
/* Todo:
* - Wait till Webkit fixes its broken-ass default dark stylesheet
* then consider trimming the dark stylesheet I provide.
* */