This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
I still recommend Head First HTML for HTML and CSS, but...
Be aware it was written when XHTML was expected to be the next step after HTML 4.01. (In fact, the book even says, "There's not going to be an HTML 5; the new standard is XHTML 1.0.") So I would just downplay their emphasis on XHTML being "the future."
"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer sscce.org