Ok. Let’s set the record straight. There is no official guide for each and every CSS shorthand property value. So let’s work together and put one together. Anytime I’ve ran into a specification (besides the confusing mess at the W3C), it turns into showing off a couple of examples and you’re supposed to be set on your way. Over the years, I’ve found quite some interesting unknown quirky facts about these shorthands… hence this Guide was born…
Direct link: CSS Shorthand Guide