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Josh W. Comeau walks through the top 10 CSS features he voted for in Mozilla's Interop 2027 ranking, from native CSS functions onward, explaining what each does, current browser support as of October 2026, and tips you can use today, as browser vendors plan next year's cross-browser Interop focus areas.
18 min · 4,081 words
Iframes that finally fit their content
Ahmad Elalfy explains Chrome 154's responsive iframes, which let an iframe grow to its content height with one CSS property, as long as the embedded page opts in with a meta tag. He compares it with the old postMessage and ResizeObserver approach and covers fallbacks, layout shift and the privacy risk of allowing any origin.
6 min · 1,287 words