HTML <!DOCTYPE html> tag

February 10, 2021 7:26 pm IST

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HTML <!DOCTYPE html> tag

The <!DOCTYPE html> tag helps the browser to determine which version your html file belongs.

The <!DOCTYPE html> tag must be declared as a first thing in your HTML document, before the <html> tag.

Tips: The <!DOCTYPE html> is NOT case sensitive.

Example

HTML Online Editor

<!DOCTYPE html> <html> <body> <p>doctype helps the browser to find html version.</p> </body> </html>

Run

Attributes

There is no special attributes for <!DOCTYPE html> tag.

Doctype Declarations

The following example provides a Doctype Declarations of all versions of HTML.

Example

HTML Online Editor

<!DOCTYPE html>  <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">  <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dt">  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">