The HTML Sanitizer API
Browser-native XSS-safe HTML insertion without DOMPurify or other libraries.
HTML news
The web is fun again: first experiments with HTML in
<canvas>An experimental Chrome API that draws real HTML into
<canvas>, with pixel and shader effects.
The end of responsive images
How
sizes="auto"withloading="lazy"lets browsers handle most responsive images.
Fully local code embeds
A web component for isolated code sandboxes without third-party embeds.
Progressive web components
An HTML-and-CSS-first library for building web components that hydrate with JS.
Getting your article shared: tips from ten years of newsletter curation
Practical advice on OG tags, sharing images, titles, blurbs, and canonical URLs.
Squarespace and web standards: how we helped bring HTML video and audio lazy loading to today’s browsers
How Squarespace engineers contributed lazy loading for video and audio to the web platform.
Form-associated custom elements in practice
Retrofitting AgnosticUI with ElementInternals and form validation.
Abusing customizable selects
Three creative CSS demos with folders, cards, and emojis.
You don’t know HTML tables
Advanced deep-dive into table vocabulary, semantics, and the Table Object Model.
A new meta tag for respecting text scaling on mobile
How the proposed textscale meta tag honors OS text size settings on mobile.
Practical guide to the
<img>element: from basics to LCPImage markup tweaks that boost Core Web Vitals.