1. CSS Feature Queries

    CSS Feature Queries allow authors to condition rules based on whether particular property declarations are supported in CSS using the @supports at rule.

  2. CSS.supports() API

    The CSS.supports() static method returns a Boolean value indicating if the browser supports a given CSS feature, or not.

  3. cssimportrule api: supportstext

  4. csssupportsrule api

  5. css api: `supports()` static method

  6. css at-rule: `@import`: `supports() as import condition`

  7. css at-rule: `@supports`: `font-format()`

  8. css at-rule: `@supports`: `font-tech()`

  9. css at-rule: `@supports`: `selector()`

  10. css selector: `::selection`: supports the `text-decoration` property

  11. types: `<image>`: `paint()`: supports additional parameters to pass to the `paintworklet`

  12. svg element: path: d: `d` as css property supports `path()`