Here is some advice from a friend of mine, a prominent web developer:

Ben: well thats good
hah
what about stuff like oneline vs many lines
or how people group properties in certain orders
http://github.com/necolas/idiomatic-css
http://github.com/necolas/idiomatic-js
csslint
OOCSS
SMACSS
https://github.com/mdo/code-guide
me: nice
thanks
Ben: those are all good
written by good folks
mdo works on bootstrap and works for github
necolas works for twitter
necolas wrote normalize-css, which is the reset that I use
me: cool
cheers
Ben: np.