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  1. HTML doctype declaration - W3Schools

    HTML Elements and Doctypes Look at our table of all HTML elements, and what Doctype each element appears in.

  2. HTML Document Structure: DOCTYPE, Head, and Body

    HTML document structure consists of essential components that ensure standards-compliant rendering across browsers. The …

  3. HTML DOCTYPE Declaration - GeeksforGeeks

    Apr 3, 2026 · Doctype Declaration for Different Version of HTML and XHTML Specifies the appropriate DOCTYPE syntax used for …

  4. HTML <!DOCTYPE> Declaration - W3docs

    Learn the HTML <!DOCTYPE> declaration: use <!DOCTYPE html> to trigger Standards Mode, avoid Quirks Mode bugs, and start …

  5. HTML DOCTYPE Declaration - W3Schools

    Other DOCTYPE Declarations In older documents (HTML 4 or XHTML), the declaration is more complicated because the declaration …

  6. Doctype - Glossary | MDN - MDN Web Docs

    Jul 11, 2025 · Doctype In HTML, the doctype is the required <!doctype html> preamble found at the top of all documents.

  7. HTML doctype declaration - W3Schools

    HTML Elements and Doctypes Look at our table of all HTML elements, and what Doctype each element appears in.

  8. Document type declaration - Wikipedia

    A document type declaration, or DOCTYPE, is an instruction that associates a particular XML or SGML document (for example, a …

  9. HTML <!doctype> - Computer Hope

    Dec 10, 2023 · Meaning of the HTML <!doctype> declaration, instruction to a browser to know the desired HTML version of a web …

  10. HTML 5 <!DOCTYPE> Declaration - W3schools.org.in

    The doctype declaration is not an HTML tag; it is an instruction to the web browser about what version of the markup language the …

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