CSS.supports()The CSS.supports() static method returns whether the browser supports a CSS declaration (given by two arguments, a property and value) or an @supports at-rule condition string.cssCSSwidely2020-01-152022-07-15https://drafts.csswg.org/css-conditional-3/#the-css-namespacecss-supports-apihttps://developer.mozilla.org/docs/Web/API/CSS/supports_staticapi.CSS.supports_staticapi.CSS.supports_static.optional_parenshttps://nowyoucanuse.com/features--css-supports.html