Runs/html · chain · Fable 5.1/031
html · chain · Fable 5.1 · step 031 of 64
offline render, Chrome 154, light scheme, 2 s of virtual time
runs in a sandboxed frame with no origin; live pages may fetch CDN fonts the offline render did not
<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
<meta name="color-scheme" content="light dark">
<title>0</title>
<link rel="icon" href="data:,">
<style>
html {
-webkit-text-size-adjust: 100%;
text-size-adjust: 100%;
}
body {
max-inline-size: 40rem;
margin-block: 0;
margin-inline: auto;
padding:
max(1.5rem, env(safe-area-inset-top))
max(1.5rem, env(safe-area-inset-right))
max(1.5rem, env(safe-area-inset-bottom))
max(1.5rem, env(safe-area-inset-left));
font: 100%/1.5 system-ui, sans-serif;
overflow-wrap: break-word;
}
h1, h2, h3, h4, h5, h6 {
margin-block: 0 1rem;
line-height: 1.2;
text-wrap: balance;
}
h1 {
font-size: clamp(2rem, 1.5rem + 2.5vi, 3rem);
}
h5, h6 {
font-size: 1rem;
}
:is(h2, h3, h4, h5, h6):where(:not(:first-child)) {
margin-block-start: 2rem;
}
:is(h1, h2, h3, h4, h5, h6) + :is(h2, h3, h4, h5, h6) {
margin-block-start: 0;
}
p, ul, ol, menu, dl, blockquote, pre, table, figure, details, address, fieldset {
margin-block: 0 1rem;
}
hr {
margin-block: 2rem;
border: 0;
border-block-start: 1px solid;
color: inherit;
}
a {
text-underline-offset: 0.15em;
}
abbr[title] {
text-decoration: underline dotted;
}
p, li, dd, blockquote, figcaption {
text-wrap: pretty;
}
figure {
margin-inline: 0;
}
blockquote {
margin-inline: 0;
padding-inline-start: 1rem;
border-inline-start: 0.25rem solid;
}
dt {
font-weight: bold;
}
dd {
margin-inline-start: 1.5rem;
}
li > ul, li > ol, li > menu {
margin-block-end: 0;
}
pre, code, kbd, samp {
font-family: ui-monospace, monospace;
font-size: 1em;
}
pre {
overflow-x: auto;
tab-size: 2;
}
sub, sup {
line-height: 0;
}
button, input, select, optgroup, textarea, ::file-selector-button {
font: inherit;
letter-spacing: inherit;
box-sizing: border-box;
}
fieldset {
min-inline-size: 0;
margin-inline: 0;
}
textarea {
resize: vertical;
}
table {
display: block;
max-inline-size: 100%;
overflow-x: auto;
border-collapse: collapse;
font-variant-numeric: tabular-nums;
}
th, td {
padding: 0.25rem 0.5rem;
border-block-end: 1px solid;
text-align: start;
vertical-align: top;
}
caption {
padding: 0.25rem 0.5rem;
text-align: start;
}
summary {
cursor: pointer;
}
:focus-visible {
outline: 2px solid;
outline-offset: 2px;
}
:target {
scroll-margin-block-start: 1.5rem;
}
:is(main, blockquote, figure, li, dd, td, th, fieldset, details) > :last-child {
margin-block-end: 0;
}
iframe {
border: 0;
}
img, svg, video, canvas, audio, iframe, embed, object, button, input, select, textarea {
max-inline-size: 100%;
}
img, svg, video, canvas {
vertical-align: middle;
}
img, svg[viewBox], video, canvas {
block-size: auto;
}
[hidden]:not([hidden="until-found" i]) {
display: none !important;
}
details[open] > summary {
margin-block-end: 0.5rem;
}
@media print {
body {
max-inline-size: none;
padding: 0;
}
h1, h2, h3, h4, h5, h6 {
break-after: avoid;
}
p, li, dd, blockquote {
orphans: 3;
widows: 3;
}
a[href^="http"]::after {
content: " (" attr(href) ")";
font-size: 0.875em;
}
pre {
white-space: pre-wrap;
}
table {
display: table;
}
img, svg, video, canvas, figure, blockquote, tr, fieldset {
break-inside: avoid;
}
}
</style>
<main>
<h1>0</h1>
</main>
what changed from step 030
+4 / -1 lines
font-size: clamp(2rem, 1.5rem + 2.5vi, 3rem); }- :is(h2, h3, h4, h5, h6):not(:first-child) {+ h5, h6 {+ font-size: 1rem;+ }+ :is(h2, h3, h4, h5, h6):where(:not(:first-child)) { margin-block-start: 2rem; }
What the model said
I made two small changes to `0.html`: one bug fix and one readability tweak. Neither has been tested in a browser — my headless Chrome check was blocked by the session's permissions.
## Changes
**1. Fixed a rule that never applied** (`0.html:36`)
The stylesheet tries to remove the top margin when one heading directly follows another (e.g. an `h2` right after the `h1`):
```css
:is(h1, h2, h3, h4, h5, h6) + :is(h2, h3, h4, h5, h6) { margin-block-start: 0; }
```
The earlier `:is(h2, …):not(:first-child)` rule has higher specificity (0,1,1 vs 0,0,2), so it always won and stacked headings still got the 2rem gap. I wrapped the `:not()` in `:where()` to drop its specificity, so the adjacent-heading rule now takes effect:
```css
:is(h2, h3, h4, h5, h6):where(:not(:first-child)) { margin-block-start: 2rem; }
```
**2. Stopped `h5`/`h6` rendering smaller than body text** (`0.html:33`)
Browser defaults put them at 0.83em and 0.67em, smaller than the paragraphs they introduce. They're now `1rem`, the same size as `h4`. This one is a matter of taste, so remove the rule if you prefer the defaults.
## What I left alone
The rest of the stylesheet is in good shape and I didn't find other defects. The page content is still just the `<h1>0</h1>` and the title `0`; I didn't add or change any content.