Whats the point of DOCTYPE?

Question

I know that different doctypes are essentially about how compliant the html is, but what difference does it make what doctype you specify? Do browsers handle the same code d

Answer 1

The doctype declaration should be the first thing in an HTML document, before the tag.

It isn't an HTML tag; it's an instruction to the web browser about what version of the markup language the page is written in.

It's getting simpler with HTML5:

If you don't have that proper doctype, the browser won't know to use HTML5.