HTML/CSS/Basic Attributes/version
"version" indicates the version of HTML
<source lang="html4strict">
<html version="4.0"> <!doctype html public "-//w3c//dtd html 4.0//en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> </head> <body> </body> <html>
</source>