The <!DOCTYPE> of a web page is a declaration. It declares the type of document your web page is to the software that is accessing it. It is usually placed on the first line of your HTML document'ssource code.
HTML doctype Element
In HTML Element
The <!DOCTYPE> of a web page is a declaration. It declares the type of document your web page is to the software that is accessing it. It is usually placed on the first line of your HTML document'ssource code.