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.
All news — Page 2
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Native JSON modules are finally real
Import attributes syntax now works in browsers and runtimes without bundlers.
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Form-associated custom elements in practice
Retrofitting AgnosticUI with ElementInternals and form validation.
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CSS is DOOMed: rendering DOOM in 3D with CSS
Every wall, floor, and enemy is a
<div>positioned in 3D space. -
The Layout Maestro, a practical CSS course on building web layouts
Learn to think about layout decisions through visual lessons and demos.
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Under the hood: a closer look at the CSS architecture behind the redesign
Cascade layers, design tokens,
light-dark(), and container queries in action. -
WebKit features for Safari 26.4
Grid lanes, WebTransport, Keyboard Lock API, and 191 bug fixes.
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Firefox 149 release notes for developers
Popover hint,
CloseWatcher,shape-outside: xywh(), and more CSS and API updates. -
CSSkit, a high-performance CSS toolchain written in Rust
A high-performance CSS toolchain written in Rust.
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Folded corner with CSS
Hover effect with clip-path, triangles, and shadow layers explained step by step.
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Abusing customizable selects
Three creative CSS demos with folders, cards, and emojis.
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Temporal: the 9-year journey to fix time in JavaScript
From TC39 proposal to Stage 4, with a shared Rust implementation across engines.