HTML doctype declaration - W3Schools
All HTML documents must start with a <!DOCTYPE> declaration. The declaration is not an HTML tag. It is an "information" to the browser about what document type to expect. In HTML 5, the declaration is …
Document type declaration - Wikipedia
A document type declaration, or DOCTYPE, is an instruction that associates a particular XML or SGML document (for example, a web page) with a document type definition (DTD) (for example, the formal …
Document structure - web.dev
Sep 27, 2022 · HTML documents include a document type declaration and the <html> root element. Nested in the <html> element are the document head and document body. While the head of the …
HTML DOCTYPE Declaration - GeeksforGeeks
Nov 1, 2025 · HTML DOCTYPE (Document Type Declaration) is an instruction that appears at the beginning of an HTML document, before the <html> tag. Its primary role is to tell the web browser …
HTML Doctype Declaration | Docs With Examples - Hackr
Mar 12, 2025 · What is <!DOCTYPE> in HTML? The <!DOCTYPE> declaration is an instruction to the web browser about the type and version of HTML being used in your HTML project. This declaration …
HTML: <!DOCTYPE> tag - TechOnTheNet
This HTML tutorial explains how to use the HTML element called the !DOCTYPE tag with syntax and examples. The HTML !DOCTYPE tag tells the browser what version of HTML the document is …
Syntax of HTML5 Doctype Declaration - Tutorial Republic
A DOCTYPE declaration appears at the top of a web page before all other elements. According to the HTML specification or standards, every HTML document requires a valid document type declaration …
HTML Basic - W3Schools
The <!DOCTYPE> declaration represents the document type, and helps browsers to display web pages correctly. It must only appear once, at the top of the page (before any HTML tags).
HTML <!DOCTYPE> Declaration - W3docs
The <!DOCTYPE> declaration specifies the HTML version used in the document. Learn how to use <!DOCTYPE> Declaration with with syntax and examples.
HTML Document Type Declaration - W3Schools
Every HTML document requires a document type declaration. It is a directive that tells the web browser about the HTML version and standard in which the current page is written; this helps different web …