SVGs on the web: performance comparison based on how you load them
Inline, img, object, background, and sprites compared for caching and speed.
All news — Page 4
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CodePen 2.0 is now in public beta
A major update is now in public beta with a file system, build blocks, and realtime collaboration.
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The too early breakpoint
Why websites switch to mobile layout too soon and how to fix it with modern CSS.
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A new meta tag for respecting text scaling on mobile
How the proposed textscale meta tag honors OS text size settings on mobile.
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Dictionary compression is finally here, and it’s ridiculously good
How Compression Dictionary Transport shrinks JS bundles up to 90% in Chrome 130+.
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Define the theme color for Safari 26
How Safari 26 determines browser chrome color and a CSS workaround.
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Native random values in CSS
New
random()andrandom-item()CSS functions from the Values and Units Level 5. -
Making WebAssembly a first-class language on the web
Component model could remove JS glue, simplify loading, and speed up web API access.
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Practical guide to the
<img>element: from basics to LCPImage markup tweaks that boost Core Web Vitals.
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Firefox 148 release notes for developers
HTML sanitizer, Trusted Types, CSS
shape(), and more. -
Sprites on the web
A practical guide to CSS spritesheets, steps(), and real-world trade-offs.
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An in-depth guide to customising lists with CSS
Markers, counters, and
@counter-styletips for better bullets and numbering.