Modern CSS Resources

Curated links to specifications, tools, learning materials, and community sites. Everything you need to stay current with CSS.

Specifications & Standards

W3C CSS Working Group

The official home of CSS specifications. Drafts, recommendations, and working group news.

w3.org/Style/CSS

CSS Snapshot 2025

The latest official snapshot of stable CSS specifications ready for implementation.

w3.org/TR/css-2025

CSSWG Editor's Drafts

Bleeding-edge CSS specifications. See what's being designed before it ships in browsers.

drafts.csswg.org

Browser Support

Check browser support for any CSS property. The definitive compatibility reference.

Baseline Dashboard

Track which features are available across all major browsers. Part of the web.dev project.

web.dev/baseline

Chrome Platform Status

Feature tracking for Chrome and Chromium. See what's shipping, in development, or planned.

chromestatus.com

Learning

web.dev Learn CSS

A comprehensive, free course covering modern CSS from fundamentals to advanced techniques.

web.dev/learn/css

MDN CSS Reference

The most complete CSS property reference. Detailed docs, examples, and browser compat tables.

developer.mozilla.org

CSS-Tricks Almanac

An encyclopedic guide to every CSS property and selector with practical examples.

css-tricks.com/almanac

Tools

The official W3C CSS validator. Check your stylesheets for syntax errors and warnings.

jigsaw.w3.org/css-validator

Modern CSS Reset

Andy Bell's minimal, modern CSS reset. A sensible starting point for new projects.

Sub-atomic CSS custom properties for consistent design tokens. Colors, sizes, easing, and more.

open-props.style

An extremely fast CSS parser, transformer, and minifier written in Rust. Handles modern syntax.

lightningcss.dev

Community

CSS Wrapped 2025

Chrome DevRel's annual roundup of CSS features that landed on the web platform.

chrome.dev/css-wrapped-2025

State of CSS Survey

Annual survey tracking CSS feature adoption, tools, and developer satisfaction.

Interop Dashboard

Track cross-browser interoperability efforts. See which features are being aligned across engines.

wpt.fyi/interop