phranque - 2:47 am on Sep 24, 2012 (gmt 0)
you should use the <blockquote> element for it's intended semantic purpose.
The blockquote element represents a section that is quoted from another source.
for what you are describing i would use a <p> element if it's a paragraph or a <div> element if you need a more generic container.
and i would definitely use external styles as described by rainborik.