I don't believe there's a formal way to do so. I do it like this:

<blockquote>"How do I quote a post when replying to it?"</blockquote>

[download]

That is to say, I put an opening <blockquote>, a double-quote character, a copy/paste of the text I want to quote, a closing double-quote char, then a closing </blockquote> tag. It renders like this:

"How do I quote a post when replying to it?"

...and now you can respond to the quote.

You can also use bold, italic etc tags to make it stand out more:

"How do I quote a post when replying to it?"
"How do I quote a post when replying to it?"

In reply to Re: Quote another post by stevieb
in thread Quote another post by Pascal666

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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