For reasons too boring to go into, I've been forced to post using IE recently. It's not very good with Blogger's HTML editor (it seems to monkey around with linebreaks).
So, as Firefox is out of bounds, I tried using Safari (which Apple have now provided in a PC version).
Look at that Atheist post - below. Horrendous - and too time consuming to fix.
Don't even think about using Safari with blogger. It's worse than IE.