Tests for CSS support can be done directly in your stylesheets using. You can also test for selectors such as,,, and more. A significant limitation of is that it currently cannot test for at-rules, meaning it cannot detect support of (container queries), (cascade layers), and others.
Table of contents
Finding Out About New CSS FeaturesTesting for CSS SupportDeciding on Using a New FeatureAlternate Methods of CSS Feature DetectionUsing Build Tools and PolyfillsAdditional ResourcesSort: