You'll probably see numbers counting up, like 1 2 3 4 ...
Hypertext Markup Language, a standardized system for tagging text files to achieve font, colour, graphic, and hyperlink effects on World Wide Web pages.
this information was taken from google
The World Wide Web Consortium, which <span>is an international community where organizations, employees</span><span> and the general public work together to develop Web standards.</span>