I attempted several searches without finding any getting matches. It
might be that I am not good at guessing terms used.
I doubt they exist, but can invisible tags exist in a web page I have
written in emacs that act like an inserted line break, e.g. <br /> or
<p>? That's what I am seeing whether direct use of the browser, or using
the html option and viewing the code rendered. It's weird, because the
lines in the editor are uniformly wrapped and nothing is visible where
the lines break when rendered. Efforts to delete such hidden tags have
failed, hence, I am at loss what I might have encountered.