[hackDaily]

An HTML "developer" needs to know the proper formatting (syntax) and structure that the browser expects from the HTML, but that's not all. HTML alone isn't going to get you very far. A developer should know, at minimum, HTML, CSS and JavaScript.

[wingerlang]

Not sure if you got what I meant. I know what a HTML-developer (web-developer) does.

I am asking what the developers OF html is doing. How do they create HTML. HTML is pretty abstract since it is a set of rules/words (html,head etc) that the browsers will read.