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HTML doctype declaration - W3Schools

Tue, 23 Jun 2026 00:19:00 GMT

Definition and Usage All HTML documents must start with a 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 simple:

Doctype - Glossary | MDN - MDN Web Docs

Mon, 22 Jun 2026 11:19:00 GMT

Doctype In HTML, the doctype is the required preamble found at the top of all documents.

Document type declaration - Wikipedia

Mon, 22 Jun 2026 11:26:00 GMT

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 definition of a particular version of HTML 2.0 - 4.0). [1] In the serialized form of the document, it manifests as a short string of markup that conforms to a particular syntax. The HTML layout ...

W3Schools Tryit Editor

Mon, 22 Jun 2026 22:18:00 GMT

Edit and test HTML code with W3Schools Tryit Editor, an interactive tool for learning and experimenting with HTML.

HTML DOCTYPE Declaration - GeeksforGeeks

Tue, 23 Jun 2026 00:41:00 GMT

Doctype Declaration for Different Version of HTML and XHTML Specifies the appropriate DOCTYPE syntax used for different HTML and XHTML versions to ensure correct browser rendering.

Doctype

Tue, 02 Jun 2026 00:59:00 GMT

Doctype All HTML documents must start with a declaration. This tag tells the browser what version of HTML the page is written in.

node.js - How to fix SyntaxError: Unexpected token '<', "
Sun, 21 Jun 2026 19:27:00 GMT
It seems like the server is returning HTML instead of JSON. This is why you're getting the "Unexpected token '<'" error, because the HTML is not valid JSON. To fix this issue, you need to check what the server is sending back and make sure it's returning a JSON object. If the server is not set up correctly, you'll need to correct that. Additionally, make sure that the API endpoint you're ...

HTML Document Structure: DOCTYPE, Head, and Body

Mon, 22 Jun 2026 14:18:00 GMT

HTML document structure consists of essential components that ensure standards-compliant rendering across browsers. The DOCTYPE declaration () is the first line and triggers standards mode. The html element is the root container and should include a lang attribute for accessibility. The head section contains metadata including character encoding (UTF-8), viewport settings for ...

!DOCTYPE

Mon, 22 Jun 2026 13:35:00 GMT

The !DOCTYPE declaration is a top-level tag-like reference known as a Public Text Identifier. It should appear at the very beginning of an HTML/XHTML document in order to identify the content of the document as conforming (theoretically) to a particular HTML DTD specification.

HTML - Declaration - Online Tutorials Library

Thu, 18 Jun 2026 01:08:00 GMT

The HTML declaration, is a component of the HTML document used to inform the web browser about the HTML version and document type it should use for rendering the page.