I agree that a keyword implies higher precedence than a comma, both in programming languages, as well as natural language. Every time I see a vs b, c I read it as (a vs b), ... [css-color-5] Make ...

CSS Color level 5 introduces the relative color syntax which allows to compute a color based on another one: https: ...

Introduction to CSS. inclusion Of CSS In HTML. CSS syntax. CSS styling Text. CSS page backgrounds. CSS 2D transform. CSS 3D transform. CSS animation. and more…. Section 2- learn javascript programming ...

Support for the comma-less syntax made its way into CSS Color Module Level 4, which became an official part of the CSS specification last year, and it's now being baked into various web browsers.