diff --git a/css-properties-values-api/Overview.bs b/css-properties-values-api/Overview.bs index 73072816..d82ff845 100644 --- a/css-properties-values-api/Overview.bs +++ b/css-properties-values-api/Overview.bs @@ -334,12 +334,12 @@ so long as you don't violate the (very liberal) syntax for custom properties. Registering a custom property does not change this. Even if a custom property is, for example, -registered with `syntax: ""`, +registered with `syntax: "<color>"`, a rule like `@supports (--foo: 1em) {...}` will still evaluate as true and apply those styles. Note: This matches the parsing behavior of registered custom properties. -A registered custom property specified as `""` +A registered custom property specified as `"<color>"` but written as `--foo: 1em;` will still be accepted as valid at parse-time, but be automatically [=invalid at computed-value time=]. As ''@supports'' tests parse behavior,