Browser vendors have always been driving the standards. W3C is correct to call their docs "recommendations". There was a brief nice moment in history when WebK

Browser vendors have always been driving the standards. W3C is correct to call their docs "recommendations". There was a brief nice moment in history when WebKit, Gecko, Trident, and Presto each had enough market share that all the vendors had to cooperate. Nowadays Trident and Presto are dead. Gecko is a great engine, but doesn't have enough market share to veto anything. So Blink can ship anything and claim it's supported "everywhere except Safari".