<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
</body>
</html>
All browsers support html declaration
Definition and usage
<!DOCTYPE> The declaration must be the first line of the HTML document, located in < before the ;html> tag. The
<!DOCTYPE> declaration is not an HTML tag; it is an instruction to the web browser as to which version of HTML the page should be written in.
In HTML 4.01, the <!DOCTYPE> declaration references a DTD because HTML 4.01 is based on SGML. A DTD specifies the rules for a markup language so that browsers can render content correctly.
HTML5 is not based on SGML, so there is no need to reference a DTD.
Tip: Always add the <!DOCTYPE> declaration to your HTML document so the browser knows the document type.
Differences between HTML 4.01 and HTML5
There are three types of <!DOCTYPE> declarations in HTML 4.01. There is only one in HTML5:
<!DOCTYPE html>
##Next let’s look at 3 of html4.01 A declaration method:
1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR /html4/strict.dtd">
This DTD contains all HTML elements and attributes, except presentational and deprecated elements (such as font). Framesets are not allowed. Markup must be written in well-formed XML.
2.<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd ">
This DTD contains all HTML elements and attributes, including presentational and deprecated elements (such as font). Framesets are not allowed. Markup must be written in well-formed XML.
3.<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">
This DTD is equivalent to XHTML 1.0 Transitional, but allows frameset content.
At present, most of us use <!DOCTYPE html>
This simplifies the code segment
Next Section
