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HTML HTML Basics Getting Started with HTML Headings and Paragraphs

Stavros Sofroniadis
PLUS
Stavros Sofroniadis
Courses Plus Student 1,503 Points
Posted by Stavros Sofroniadis
Stavros Sofroniadis
Courses Plus Student 1,503 Points

About Document Type Definition of an HTML document

Dear Friends,

it was mentioned in a video tutorial that DTD(Document Type Definition ) declare the edition of HTML we are writing.

If we mention <!DOCTYPE html> means we use HTML5 markup languagge and reality we use HTML4 tags or vice versa we mention <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

and reality we use HTML5 tags.

It will work properly the HTML file or not?

Thank You,

1 Answer

Jacob Jackson
seal-mask
.a{fill-rule:evenodd;}techdegree
Jacob Jackson
UX Design Techdegree Student 7,833 Points
Jacob Jackson
.a{fill-rule:evenodd;}techdegree
Jacob Jackson
UX Design Techdegree Student 7,833 Points

Hey Stavros!

HTML5 is "backwards compatible" which means that the new syntax is compatible with the older forms of HTML.

So for example, if your site currently has the older XHTML way as you put: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> you can simply replace it with the HTML5 <!DOCTYPE html> and should be just fine :)

Such a good question!

-Jake