Ah, I could have sworn it used to work! But, I gotta believe it when YOU
say "always has"!
So, the editor supports it, but the CSS drops it out. (You see the
large font when in the editor.)
I've been having trouble, though, when cutting-and-pasting,
e.g. a snippet from some documentation page, and I've been getting
results similar to the post that you fixed. I've had to just type
it in!
I guess I should be able to cut-paste to my text editor, and then
cut-paste it again from there.