Afaik browser devs are dictating the standard for many years already. Also, the post ackshually refers to a W3C draft at https://www.w3.org/TR/css-nesting-1/ h

Afaik browser devs are dictating the standard for many years already. Also, the post ackshually refers to a W3C draft at https://www.w3.org/TR/css-nesting-1/ https://www.w3.org/TR/css-nesting-1/