A while back, I posted this question: Get Dingbats to appear in Firefox 3?
Today, I revisited it to add an answer sourced from Check marks indicating obtained badges use unicode ✔ symbol, not available for many users
Since I'd sourced it from someone else, I of course attributed the quote in a <blockquote> tag.
This is how it appeared in the preview: Preview http://img300.imageshack.us/img300/900/previewa.gif
This is how it appeared in the page: My block http://img30.imageshack.us/img30/9296/noblock.gif
It appears to just be my answer, because the other answer on the page has the blockquote (apparently) working fine: His block http://img38.imageshack.us/img38/6023/blockukv.gif