HTML

The language that gives a web page its structure — like the skeleton of a building before paint and furniture go in.

A declarative markup language that defines the structure and semantics of web content using nested elements and attributes. Browsers parse HTML into the DOM for rendering.

The W3C/WHATWG HTML Living Standard specifies a tree-structured document model parsed by a state-machine tokenizer into a DOM tree. Conformant user agents apply error-recovery rules defined in the spec, making HTML remarkably fault-tolerant compared to XML-based serializations.