The Future of CSS
As major browser vendors collaborate on the Interop project to achieve universal web standard support, developers are casting votes for the most requested features for Interop 2027. Among the leading proposals is the introduction of native CSS functions, which could revolutionize stylesheet writing by mirroring programming logic found in JavaScript.
Why it matters
Native CSS functions represent a major evolution in web design capabilities, potentially eliminating the need for preprocessors and making complex styling natively maintainable across all major browsers.
For the past few years, all of the major browser vendors (Google, Apple, Microsoft, and Mozilla, along with Igalia and Bocoup) have been working together on Interop (opens in new tab) , a project to improve universal browser support on web technologies. It’s been a remarkably successful effort; when a focus area gets added to Interop, it often winds up reaching near-100% support across all major browsers within a year. ✨
CSS Subgrid is a good example. Subgrid is a super-powerful extension to CSS Grid which enables entirely new layouts . It was implemented in Firefox back in 2019, but there wasn’t much movement with other browsers for years. It got added to Interop 2023, and by the end of that year, it was widely available across all modern browsers:
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