Did the calibre21 style:
define the blockquote?
looking at the html, I see a lot of this:
but just changing the "margin-left: 1em;" in calibre21 fixed everything - I didn't have to change it in all the other class=calibrexx calls. I wonder if everything is defined in terms of calibre21 somewhere in the css?
whatever, it's fixed now, and much more readable. each time this happens to me, I learn more and more about what to look for in my .css files.