Among the many things MDN provides is really extensive and accurate information about what the browsers actually do, which the specifications could never tell y

Among the many things MDN provides is really extensive and accurate information about what the browsers actually do, which the specifications could never tell you. Hearkening back to the good old days is nice and all, but referencing the W3C is an interesting choice in a world where they've long since practically, and more recently officially, ceded HTML and the DOM to WHATWG.