Web Standards

October 16
Fit height to background pattern size with calc-size()
Rounding a section’s auto height to the tile size so a repeating pattern never gets cut off.
October 15
Iframes that finally fit their content
A Chromium CSS property and a <meta> opt-in replace postMessage height scripts.
October 14
Firefox 158 release notes for developers
JPEG XL by default, CSS typed arithmetic, and a navigate option for notifications.
October 13
Rendering Markdown comments safely: setHTML(), DOMPurify, and Trusted Types
One explicit allowlist for every place comments render, with native and library sanitizers.
October 12
iPhone Duo: doubling my disappointment with Safari
Safari skips safe area insets for the side toolbar and tints it by sampling the page’s colors.
October 9
2027 web platform feature ranking
Rank the Interop 2027 proposals you care about to help Firefox pick what to push for.
October 8
What’s new in Chrome 155
JPEG XL returns, inline counter styles, margin-trim, and text modules.

October 15
Iframes that finally fit their content
A Chromium CSS property and a <meta> opt-in replace postMessage height scripts.
October 13
Rendering Markdown comments safely: setHTML(), DOMPurify, and Trusted Types
One explicit allowlist for every place comments render, with native and library sanitizers.
September 22
Responsive iframes in Chrome 154
An embedded frame grows with its content, no postMessage height plumbing.
September 9
You don’t need initial-scale in your HTML
Two authors landed on the same viewport <meta> element finding hours apart.
September 4
Fine, I’ll build my own text editor!
Comparing <canvas>, contenteditable, and <textarea> for building an editor in the browser.
August 24
A look at the <geolocation> HTML element and how it works
Chrome 144 ships a permission-friendly element with autolocate, watch, and a :granted pseudo-class.
August 21
My HTML boilerplate in 2026
A commented head section with text scaling, SVG favicons, markdown alternates, and fediverse tags.

October 16
Fit height to background pattern size with calc-size()
Rounding a section’s auto height to the tile size so a repeating pattern never gets cut off.
October 15
Iframes that finally fit their content
A Chromium CSS property and a <meta> opt-in replace postMessage height scripts.
October 12
iPhone Duo: doubling my disappointment with Safari
Safari skips safe area insets for the side toolbar and tints it by sampling the page’s colors.
October 6
Transferring sibling-count() to a parent element
How to pass the number of children to a parent before children-count() arrives.
September 29
Improving site performance by shipping more CSS
GitHub’s Primer moved from CSS-in-JS to CSS Modules, cutting server rendering time by 55%.
September 24
One SVG, nine posters: CSS link-parameters
An external SVG takes its colors from the page, and keeps its own when nothing is passed in.
September 23
The root scroller and how not to lose it
Nested scroll containers quietly take away keyboard scrolling, pull-to-refresh, and more.

October 13
Rendering Markdown comments safely: setHTML(), DOMPurify, and Trusted Types
One explicit allowlist for every place comments render, with native and library sanitizers.
October 7
A flame needs three sine waves
From pencil sketches to a canvas match that strikes, burns, and flickers like a real one.
October 2
The JavaScript midlife crisis
Rewriting tools in Rust, Go, and Zig makes them faster, but fewer developers can maintain them.
September 17
Modern web types
A drop-in replacement for TypeScript’s DOM types with a single-engine threshold.
September 14
The browser’s main thread is expensive
Splitting, batching, and offloading work to keep every frame under 10 milliseconds.
September 4
Fine, I’ll build my own text editor!
Comparing <canvas>, contenteditable, and <textarea> for building an editor in the browser.
August 31
Highlighting a range of text inside a form field
The Custom Highlight API finally reaches form controls thanks to OpaqueRange in Chromium 152.

July 24
Building an accessible modal dialog on the native <dialog>
How showModal() handles focus, Escape, and animation so you don’t have to.
July 1
A11y.quest: 128 questions to level up your accessibility game
An interactive quiz to test and sharpen your web accessibility knowledge.
June 30
Modern CSS theming with light-dark(), contrast-color(), and style queries
Accessible, composable color themes that adapt elevation to light and dark modes.
June 29
Your grid lanes will likely fail WCAG 2.4.3
How balanced column heights break keyboard focus order, and how to fix it.
June 23
Improving card patterns with anchor positioning
A pseudo-element covers the card surface but stops short of the secondary actions.
June 18
Context-aware headings in HTML
How headingoffset shifts heading levels in the accessibility tree without changing tags.
June 5
The website specification
A platform-agnostic reference of features every quality website should have.

October 14
Firefox 158 release notes for developers
JPEG XL by default, CSS typed arithmetic, and a navigate option for notifications.
October 9
2027 web platform feature ranking
Rank the Interop 2027 proposals you care about to help Firefox pick what to push for.
October 8
What’s new in Chrome 155
JPEG XL returns, inline counter styles, margin-trim, and text modules.
October 5
Developer Signals: shape what browsers build next
Vote for upcoming web features and share use cases that go straight to browser vendors.
September 30
Firefox 157 release notes for developers
at-rule() in @supports, a chain value for overscroll-behavior, and Web Animations fixes.
September 28
What’s new in Chrome 154
Decoration insets, tab semantics for scroll markers, and self-sizing frames.
September 25
Browsers situationship: when browsers agree but the spec doesn’t
Sometimes the spec moves toward the browsers, and that isn’t a failure of the process.