A document type definition is a set of markup declarations that define a document type for an SGML-family markup language. A DTD defines the valid building blocks of an XML document. It defines the document structure with a list of validated elements and attributes.

What is XML DTD?

What is DTD. DTD stands for Document Type Definition. It defines the legal building blocks of an XML document. It is used to define document structure with a list of legal elements and attributes.

What is DTD explain with examples?

A DTD defines the tags and attributes used in an XML or HTML document. Any elements defined in a DTD can be used in these documents, along with the predefined tags and attributes that are part of each markup language. The following is an example of a DTD used for defining an automobile: <! DOCTYPE automobile [