What is the HTML5 Doctype and why is it important?

HTML5 Doctype

My HTML5 Document

Hello World!

This is my first HTML5 document.

```

Note that the HTML5 doctype is on the first line of the document and is followed by the opening `````` tag.

The document then includes a ```

``` section with a title and a ```

Originally published at Internet Stack.
This publication may contain affiliate links to external websites.