Do you want to know how the CSS WG works? Fantasai has written about:csswg, An Inside View of the CSS Working Group at W3C.
font-weight: bolder/lighterand jdaggett’s proposal to just step up/down the numerical scale that avoids need to reference font data rather than tracking the actual weights available. WG seems to want to move in that direction, jdaggett will write up and send to www-style.
local()doesn’t require quotes,
format()is authoritative. User agents must not download or use formats they don’t support as indicated by
src()in a single
@font-facethat are both supported only the first is used.
unicode-range is the intersection of the font cmap and stated
unicode-rangeinitial value should be 0-U+10FFFF