See issue 13 in the spec. Right now we have

inital-letter-wrap (none | first | all | grid | <length> | <percentage>)

none doesn't do any wrapping, and all wraps every line to be close to the shape of the initial letter. first just wraps the first line, but acts like none if there's a space after the initial letter. This is because you don't want to close up the word space if the para starts like "A screaming comes across the sky."

Should we rename first to auto, and add a first that always applies, whether or not there is a space after the initial letter? I don't immediately see a typographic situation where this would be useful.