CSS & Web Platform Support Chart
What is the CSS Support Chart?
A chart of browser support for popular CSS, HTML, and web platform features in evergreen browsers. Keep track of which features are ready to use when targeting Firefox, Safari, Chrome, and Edge. Categories: full support (ready across the board), good support (mostly ready, some gaps), poor support (experimental or limited). Refer to Can I Use for detailed support. Submit suggestions to add or reclassify features as browser support evolves.
What the Chart Covers
Three support categories for evergreen browsers.
Features fully supported across all evergreen browsers. Flexbox, Grid, gap, aspect-ratio, clamp, CSS variables, and more.
Features mostly supported. Some partial or no support in certain browsers. WebP, clip-path, backdrop-filter, etc.
Experimental or poorly supported. AVIF, Houdini, Subgrid, Container Queries. Reference for caution.
Links to Can I Use for detailed per-feature, per-browser support.
Form to suggest features to add or reclassify as support changes.
Targets modern evergreen browsers. Not legacy IE.
How To Use the Support Chart
Reference the chart in three ways.
Features in full support are safe to use. Flexbox, Grid, gap, clamp, etc.
Features with partial support. Plan fallbacks or progressive enhancement.
Experimental features. Use with fallbacks or avoid for production.
Tips for Using the Chart
Get the most out of the reference.
For per-browser, per-version details, check Can I Use.
Chart assumes evergreen browsers. Legacy IE not covered.
Support changes. Submit updates if you notice reclassification needs.
Great For Developers
Who benefits from the support chart?
Decide which CSS features to use.
Know what is safe for layouts, effects.
Shared reference. Align on browser targets.
See what modern CSS is ready for production.
Why Use a Support Chart?
Quick reference for feature readiness.
Full vs good vs poor at a glance.
Modern browsers. No legacy clutter.
Reflects current support. Suggestions welcomed.
Open reference. No account required.
Technical Details
About the chart.
Firefox, Safari, Chrome, Edge. Latest evergreen versions.
Full support, good support, poor support.
Can I Use for detailed support data.
Frequently Asked Questions
Have questions? We have answers.