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Throughout the HTML and XHTML versions, the way to you declares the doctype has been modified after the HTML5.

You should do this declaration in the first line of code. So let’s get to know some of them through the doctype element.Īs explained earlier, the doctype should be declared before the HTML tags. However, there are still page documents based on previous versions of HTML that you can find on the WEB. Īll current browsers support the newest version of HTML. You can note it appears that no version is declared. To understand, you can see in the example below an HTML5 Doctype declaration. In HTML5, the newest version of HTML, it’s not necessary to declare a specific version. Therefore, the declaration of Doctype was made through the DTD (Document Type Declaration) mode.Īs of version 5, HTML is no longer based on SGML, and thus simplified even the doctype declaration. Therefore, it must be declared in the first line of an HTML code.

The Doctype HTML element can be defined as a declaration that tells the browser which version of HTML is used in the file. Despite the similar syntax, Doctype is not considered an HTML tag.