On: Three CSS features you need to know about

[stan_rogers]

Box-sizing should be supported unprefixed as well (recent versions of IE, Chrome, FF and Opera; not sure about the current Safari).

[eurleif → stan_rogers]

And you should add the unprefixed version of a property to your CSS even if it isn't yet supported by browsers, to future-proof your code.

[masklinn → eurleif]

Unless the spec is still in flux and the unprefixed syntax changes, then you're SOL.

[eurleif → masklinn]

Still better to have the unprefixed version in your code than not to, I'd say. I really doubt the spec would change so that old code was still valid, but had a different meaning; most likely, the worst that would happen is old code would become invalid (and CSS's error handling makes invalid code not a big deal).

[tagawa → eurleif]

And put the unprefixed version below the prefixed properties, so it has priority in browsers that support both.

[iamben → stan_rogers]

Sorry - unprefixed version was there, just removed when I pasted it in (hence my mangled code edit!)...