<p>I don't think that's true.<br> Perhaps you're thinking of xhtml? Observe the lack of a closing p tag, to say nothing of the multiple self-closing tags in

<p>I don't think that's true.<br> Perhaps you're thinking of xhtml? Observe the lack of a closing p tag, to say nothing of the multiple self-closing tags in html: hr, img, link, meta, ... https://html.spec.whatwg.org/multipage/grouping-content.html#the-p-element:~:text=can%20be%20omitted https://html.spec.whatwg.org/multipage/grouping-content.html...