I'm working with Harp and Boostrap. Everytime I refresh the page I have, this is added inside body tags:
it has to be:
<!DOCTYPE html> <html> <head> <title>Title of the document</title> </head> <body> The content of the document...... </body> </html>
Definition and Usage
<!DOCTYPE> declaration must be the very first thing in your HTML document, before the tag.
<!DOCTYPE> declaration is not an HTML tag; it is an instruction to the web browser about what version of HTML the page is written in.
In HTML 4.01, the
<!DOCTYPE> declaration refers to a DTD, because HTML 4.01 was based on SGML. The DTD specifies the rules for the markup language, so that the browsers render the content correctly.
HTML5 is not based on SGML, and therefore does not require a reference to a DTD.
Tip: Always add the
<!DOCTYPE> declaration to your HTML documents, so that the browser knows what type of document to expect.
see DOCTYPE declaration
to fix this, check the error in the library or in your file