lucy24 - 1:02 am on Jan 25, 2012 (gmt 0)
Aha! The extra space is actually inside the table cell, it just looks like it's between them. fwiw, my default paragraphs have margins only at the top. (Same for almost everything except headers.) Makes it easier to adjust inter-paragraph spacing when you do p + p type stuff.
Oddly enough, closing </p>'s are optional in 4.01 and less but it's really bad style not to and the W3C will warn you.
In fact, some ill-advised actions -- like putting a table inside a paragraph -- will make the validator think a paragraph is closed when you've never touched it. So then it yaps about closing an element that isn't open.
And then there are the browsers that will italicize until the cows come home if you carelessly leave off the </i> before the end of your containing element-- even though the validator raises ### when you do get around to closing it.