browser-specific text format
Let's start off with some normal text, for contrast...

Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.

That was a <DIV>, division. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.
</DIV>, end of division. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.

So what's the big deal? Try right and justify ...

Normal text. Normal text. Normal text. Normal text.

That was a <DIV ALIGN=RIGHT>, division. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.
</DIV>, end of division. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.
That was a <DIV ALIGN=JUSTIFY>, division. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.
</DIV>, end of division. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.
That was a <DIV ALIGN=JUSTIFY><DIV ALIGN=RIGHT>, division. Do both apply at once? Otherwise, JUSIFY applies only to left justification, which appears to be the default anyway. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.
</DIV>, end of division. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.
That was a <DIV ALIGN=CENTER>, division. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text. Normal text.
</DIV>, end of division. I think I get it. All DIV does is declare a block of text, so it's purposeless without an ALIGN to do right-justify, or center alignment. DIV alone defaults to ALIGN=LEFT, as does text with no DIV. But what's ALIGN=JUSTIFY for then?
This is a block quote. This is a block quote. This is a block quote. This is a block quote. This is a block quote. This is a block quote.
This is code. This is code. This is code. This is code. This is code. This is code. This is code. This is code. This is code. This is code. This is code. This is code.
This is sample output. This is sample output. This is sample output. This is sample output. This is sample output. This is sample output.
This is keyboard input. This is keyboard input. This is keyboard input. This is keyboard input. This is keyboard input. This is keyboard input.
Sometimes, text needs Emphasis, or even Strong Emphasis.

If you're describing a small Chevrolet, you might need a Citation.

The mathematically inclined may declare a Variable.

Does the word Definition mean 'to throw out a window', or is that something else? It's not widely implemented, anyway.

It is not clear why we need a separate tag for the

Author's Address
. I guess it forces a break. Big deal.

We might want to increase the volume and use a Large Font Size or quiet down with a Small Font Size.