Is it necessary to write -webkit-transition in 2016?

Question

Cross browser

Do I need to write all sorts of -webkit-transition, etc. instead of just transition? Do all modern browsers fully support CSS3? We don't take IE into consideration, it's not a browser.

Answer 1

Use this caniuse.com and this https://autoprefixer.github.io/ru/ to avoid such issues
And yes, alas, but IE is a browser;)

Answer 2

Unsubscribed 83.24% of browsers
with prefixes 91.94%
caniuse.com/#search=transition

Answer 3

In 2016, you need to use autoprefixers.