When you are posting material about HTML and need to use the open carrot, or less-than symbol (<), you can't just type < because the Web browser will parse that as the opening for a tag (i.e. <html>) and render the page in some wild and crazy way. It is a reserved character, as they say.
So you write this: "<" or "<" as the opening tag (without the quotes).
will get you this:
btw, these strings of symbols correspond to the reserved character naming and numbering rules, i.e. &entity_name; OR entity_number; ...
This ">" can render the closing tag, but you may not need that, at least
if you haven't opened any more tags...
No I will not explain how to render ">" on a Web page, because that would involve another level of recursion I don't feel up to sussing out this afternoon...
Thanks to the W3C Schools for this tip-a-rooni.