HTML - (Specification | API | Standard )

About

In HTML, there is two specifications:

• the syntax - how to write an HTML document
• the API (dom) - how to build a DOM document from a HTML document and manipulate it

Specifications

Syntax

The syntax is specified in the the HTML Standard. It's also browsable in the HTML Standard repository

API

The API for HTML developed by browser vendors were specified and published under the DOM name. See How is the DOM document build from an HTML document ?